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AcelleMail vs SendGrid

AcelleMail vs SendGrid — self-hosted email marketing alongside cloud transactional email

Side-by-side comparison of AcelleMail (self-hosted PHP application, $80 one-time license, MySQL/MariaDB, plugin SDK) and SendGrid (Twilio cloud service since 2019, Email API + Marketing Campaigns, REST + SMTP relay). SendGrid remains a built-in sending driver in AcelleMail — many teams use both: AcelleMail for the marketing platform, SendGrid for transactional API delivery.

一目で見る AcelleMail SendGrid
License model Commercial license — $80 Regular / $199 Extended on CodeCanyon. Full PHP source included; one-time payment with lifetime point + minor updates. Cloud SaaS subscription. Free trial (100 emails/day for 60 days per the product page); paid Email API and Marketing Campaigns tiers billed monthly through Twilio.
Hosting Self-hosted on Linux + PHP 8.1+ + MySQL/MariaDB. Single-tenant or multi-tenant on the same install (Extended). Cloud-only — operated by Twilio. No self-hosted distribution.
Stack PHP 8.1+ (Laravel-based), MySQL/MariaDB, optional Redis cache. Twilio-managed cloud infrastructure. Customer-side: REST API + SMTP relay; no stack to host.
Marketing platform Visual builder, automation flows (Automation2), segmentation, A/B testing, RSS-to-email, multi-language UI — all bundled. Marketing Campaigns is a separate product layer above Email API. Free tier per the product page: "6,000 emails per month and store up to 2,000 contacts." Higher tiers add automation, send-time optimization, and advanced analytics.
API surface REST API documented at /api (campaigns, lists, subscribers, automations, sending servers, reports). Same API the dashboard uses. REST API per twilio.com/docs/sendgrid/api-reference: Mail Send, Marketing Campaigns, Subusers, IP Management, Stats, Suppression, Templates, Email Validation, Domain Authentication, Event + Inbound Parse webhooks. SMTP relay supported.
Multi-tenancy / SaaS Extended License ($199) ships a multi-tenant layer — customer accounts, plans, 6 payment gateways, dunning, white-label. Subuser API allows per-subuser sending and stats isolation. SaaS-style billing of end customers is the integrator's responsibility.
Integration in AcelleMail AcelleMail bundles SendGrid as one of 8 built-in sending drivers (app/SendingServers/Drivers/Vendors/SendGrid/). Existing SendGrid keys can be paired with AcelleMail in minutes. SendGrid is the cloud sender behind that driver — the API contract is the same one documented at twilio.com/docs/sendgrid.
機能パリティ

機能ごとの比較

AcelleMail v4.2 と Mailchimp の公開機能ドキュメントから抽出した、約 30 の属性を 7 つのカテゴリに分類しています。すべての は、引用された出典に対して検証可能です。

Email creation

機能 AcelleMail SendGrid 備考
Drag-and-drop email builder AcelleMail ships a visual block editor with mobile preview. SendGrid Marketing Campaigns includes its own drag-and-drop editor on the Marketing Campaigns paid tiers.
100+ pre-built templates AcelleMail bundles a starter template gallery. SendGrid Marketing Campaigns ships templates and a Design Library; transactional templates are managed via the Templates API.
Full HTML editor Both platforms let you edit raw HTML/CSS for campaigns and transactional sends.
Spintax / dynamic content AcelleMail includes spintax + per-subscriber merge fields. SendGrid Templates support Handlebars-style substitution and conditionals; spintax-style randomization is not in the published Templates API.
A/B testing AcelleMail supports subject-line and content split tests on every license. SendGrid Marketing Campaigns supports A/B testing on the paid Marketing Campaigns tiers.
Multi-language UI AcelleMail ships 18 locales for the admin UI. The SendGrid dashboard UI language follows the user account locale set in Twilio Console.

Lists & segmentation

機能 AcelleMail SendGrid 備考
Unlimited subscribers (software cap) AcelleMail imposes no software-side cap; limits come from the database and server. SendGrid Marketing Campaigns charges by contact storage tier ("store up to 2,000 contacts" on the Free tier per the product page).
Multiple lists Both support unlimited lists.
Advanced segmentation AcelleMail provides a visual segment builder over subscriber fields, behavior, tags, and date logic. SendGrid Marketing Campaigns supports segments built from contact properties and engagement events via the Segments API.
Tags Both support tag-style subscriber labeling. SendGrid Marketing Campaigns calls them Custom Fields and Lists.
Embeddable signup forms Both generate embeddable signup forms and double opt-in flows.
Bulk import (CSV / API) Both support bulk imports. AcelleMail accepts CSV/XLSX or direct DB seed; SendGrid supports CSV upload + the Recipients API.

Automation & flows

機能 AcelleMail SendGrid 備考
Visual workflow builder AcelleMail Automation2 ships trigger / wait / condition / send / tag-update / segment-move nodes. SendGrid Marketing Campaigns includes Automations on its paid Marketing Campaigns tiers.
Customer journey / multi-step flows Both platforms support multi-step journeys.
RSS-to-email AcelleMail can pull RSS feeds into scheduled campaigns. SendGrid customers typically build RSS-to-email by polling externally and POSTing to the Mail Send API.
Behavioral triggers (opens / clicks) AcelleMail exposes engagement events as automation triggers. SendGrid emits open and click events through the Event Webhook for downstream processing.

Deliverability

機能 AcelleMail SendGrid 備考
SPF / DKIM / DMARC tooling AcelleMail surfaces SPF/DKIM/DMARC record values per sending server. SendGrid offers Domain Authentication (DKIM/SPF) and Reverse DNS configuration in the dashboard.
Custom sending domain (return path) AcelleMail supports per-sending-server return path. SendGrid offers Link Branding and a custom return-path on Domain Authentication.
Multiple sending services AcelleMail ships 8 native drivers (SES, SendGrid, SparkPost, Mailgun, Elastic Email, Blastengine, Gmail, generic SMTP). SendGrid is itself the sending service — it does not relay through other providers.
IP warmup AcelleMail supports daily/hourly send caps per sending server for gradual warmup. SendGrid provides Automated IP Warmup on dedicated-IP plans per its IP Management API.
Click maps + spam scoring AcelleMail provides click heatmaps and SpamAssassin-style scoring on each campaign. SendGrid records click events in Stats; spam-score scanning is not in the public API.
Bounce / complaint webhook ingestion AcelleMail registers webhook endpoints for SES/SendGrid/Mailgun/etc. (see app/SendingServers/Webhooks/). SendGrid emits Event Webhook + Inbound Parse Webhook per its API reference.

Integrations

機能 AcelleMail SendGrid 備考
REST API AcelleMail's REST API is documented at /api. SendGrid's API reference is at twilio.com/docs/sendgrid/api-reference.
SMTP relay AcelleMail itself is a marketing platform; outbound SMTP is delegated to your sending server (which can be SendGrid). SendGrid offers SMTP relay endpoint smtp.sendgrid.net per its docs.
Webhooks AcelleMail emits outbound event webhooks (subscribe, unsubscribe, click, open, etc.). SendGrid emits Event Webhook for delivery events plus Inbound Parse Webhook for inbound mail.
WordPress / WooCommerce sync AcelleMail provides an official WordPress / WooCommerce plugin. SendGrid is reachable from WordPress via plugins like SMTP plugins; the SendGrid for WordPress plugin was deprecated by Twilio.
Zapier / Make / n8n Both are first-party listed on Zapier / Make / n8n.
Custom plugin SDK AcelleMail ships a four-pattern Hook system (REGISTRY, EVENT, FILTER, BEHAVIOR) — see Plugin SDK. SendGrid extension is via the public REST API; there is no in-process plugin runtime.

SaaS / multi-tenancy

機能 AcelleMail SendGrid 備考
Multi-tenant workspaces AcelleMail Extended ($199) ships a reseller layer with customer accounts, plans, and billing. SendGrid Subusers provide per-subuser sending isolation; reseller billing is built outside SendGrid.
Subscription plans + payment gateways AcelleMail bundles 6 payment gateways (Stripe, PayPal, Braintree, Razorpay, Paystack, Offline). SendGrid does not include subscription billing primitives for resellers of its own service.
White-label / remove vendor branding AcelleMail Extended removes branding for reseller use. SendGrid offers Link Branding for outbound emails; the dashboard remains SendGrid/Twilio-branded.
Reseller billing / dunning AcelleMail's Cashier package covers subscriptions, prorated upgrades, and dunning. SendGrid does not provide reseller billing primitives.

Operations

機能 AcelleMail SendGrid 備考
Self-hosted on your servers AcelleMail is a PHP application — runs under PHP-FPM + nginx/Apache on hardware you control. SendGrid is a Twilio-operated cloud service.
Cron / background workers AcelleMail relies on a system cron entry that triggers campaign workers. SendGrid customers run their own schedulers when triggering Mail Send / Single Sends; SendGrid hosts the actual delivery infrastructure.
On-premise / air-gapped deployment AcelleMail can run fully on-premise or in air-gapped environments. SendGrid is cloud-only.
GDPR data residency control AcelleMail data lives wherever you host the install. SendGrid is operated from Twilio infrastructure (US-headquartered); see twilio.com/legal/privacy for the published data-handling terms.

Cost & ownership

機能 AcelleMail SendGrid 備考
License model AcelleMail Regular is $80 one-time; Extended is $199 (includes lifetime point/minor updates + 6 months support). SendGrid is a recurring subscription billed by Twilio; specific tier costs vary — see sendgrid.com/pricing for current values.
Lifetime updates AcelleMail license includes lifetime point + minor releases. SendGrid customers receive product updates as part of the subscription.
Data export ownership AcelleMail runs on a database you control — full SQL access, CSV export, and REST API. SendGrid offers contact CSV export and Stats / Activity API endpoints.
Source code visibility AcelleMail ships full unencrypted PHP source. SendGrid is a closed-source cloud service; only the published REST/SMTP API surface is documented.
総所有コスト

3 つの現実的シナリオでの 3 年間のコスト

SendGrid is a cloud subscription billed monthly through Twilio; AcelleMail is a one-time license you self-host on a VPS plus a sending service (which can be SendGrid). The dollar values below assume Amazon SES at $0.10 per 1,000 emails for the AcelleMail rows; substitute SendGrid Email API or your preferred provider as needed. Specific SendGrid Marketing Campaigns tier prices change — consult sendgrid.com/pricing for current values.

Small business — 1,000 contacts, 4× sends/month

SendGrid — SendGrid Marketing Campaigns paid tier (above Free) SendGrid Marketing Campaigns Free covers 6,000 emails/month and 2,000 contacts. Once exceeded, upgrade to a paid Marketing Campaigns tier billed monthly.
Free tier may cover this scenario indefinitely if volume stays under 6,000 emails/month — verify against the current sendgrid.com/pricing thresholds.
AcelleMail — AcelleMail Regular License + small VPS + Amazon SES (or SendGrid Email API) $5/mo VPS + $0.40/mo SES (4,000 sends × $0.0001)
$80 license + $180 VPS + $14 SES = $268 total

At 1,000 contacts and 4 sends/month, both models are inexpensive. AcelleMail's $80 license is one-time; the recurring cost is your VPS + sending. SendGrid Marketing Campaigns Free may cover this volume; cost difference is small either way.

Growing newsletter — 10,000 contacts, 80,000 sends/month

SendGrid — SendGrid Marketing Campaigns paid tier scaled to 10K contacts + 80K sends Marketing Campaigns paid tier billed monthly per the published contact + send tier; consult sendgrid.com/pricing for the tier covering 10K contacts and 80K monthly sends.
Recurring monthly subscription × 36 months — verify against current pricing.
AcelleMail — AcelleMail Regular License + $10 VPS + Amazon SES $10/mo VPS + $8/mo SES (80,000 × $0.0001)
$80 license + $360 VPS + $288 SES = $722 total

At 10K contacts and 80K monthly sends, AcelleMail self-hosted on SES converges to roughly $20/month after the one-time license is amortized. The cost gap depends on the SendGrid Marketing Campaigns tier covering this volume.

Agency / SaaS — 50,000 contacts, 400,000 sends/month, 50 client tenants

SendGrid — SendGrid + custom multi-tenant integration layer SendGrid does not include reseller-billing primitives; agencies typically operate their own tenant layer over SendGrid Subusers. Costs include the SendGrid subscription tier covering aggregate volume + the agency's own billing/operations layer.
SendGrid subscription × 36 months + custom integration build/operations cost.
AcelleMail — AcelleMail Extended License + $20 VPS + Amazon SES (multi-tenant on a single instance) $20/mo VPS + $40/mo SES (400,000 × $0.0001) — covers all 50 tenants on one install.
$199 license + $720 VPS + $1,440 SES = $2,359 total

AcelleMail Extended ships a multi-tenant SaaS layer (customer accounts, plans, 6 payment gateways, dunning) bundled. SendGrid Subusers handle send isolation; the reseller billing layer is the integrator's build.

移行プレイブック

SendGrid → AcelleMail、7 ステップで

ほとんどのチームは 1 週間以内に切り替えを完了します。技術的セットアップは半日で済みます。時間を要するステップは、多段階の自動化とテンプレートの再構築です。

  1. 1. Export from SendGrid

    In SendGrid Marketing Campaigns, export contacts as CSV from Contacts → All Contacts → Export to CSV. For programmatic export, the Marketing Campaigns Contacts API at GET /marketing/contacts returns subscriber records with custom fields. Export campaign HTML from each campaign's detail view; the Single Sends API can also retrieve campaign content. For transactional Templates, the Templates API returns versions and HTML.
  2. 2. Get AcelleMail

    Buy the Regular License — $80 on CodeCanyon. Download the ZIP, upload to your server, run the web installer (5 minutes — sets DB, admin user, cron). PHP 8.1+, MySQL ≥ 5.7 or MariaDB ≥ 10.3, ~512 MB RAM minimum. The installation guide walks through cPanel, DigitalOcean, AWS, and Docker.
  3. 3. Configure your sending service

    In Sending Servers → Add, you can keep using SendGrid: pick the SendGrid driver, paste your existing API key, and AcelleMail will route through the same sender you already trust. Or pick Amazon SES (cheapest), Mailgun, SparkPost, or generic SMTP. The 8 built-in drivers live in app/SendingServers/Drivers/Vendors/. Run the test-send to confirm.
  4. 4. Import contacts + custom fields

    In Lists → Create List, recreate your SendGrid lists with their custom-field schema (SendGrid Custom Fields map to AcelleMail subscriber custom fields one-to-one). Use Import → Upload CSV and map columns. Tags map directly. For lists over 100K contacts, use the chunked import or seed via the REST API.
  5. 5. Recreate templates and campaigns

    For Templates, paste your SendGrid HTML into AcelleMail's template editor. Substitution syntax differs: SendGrid Templates use Handlebars-style {{firstName}}; AcelleMail uses {{ subscriber.first_name }}. Subscriber-attribute access is equivalent. For Marketing Campaigns Automations, rebuild trigger flows in Automation → New Workflow using the visual builder.
  6. 6. Configure tracking + DKIM

    AcelleMail tracking is enabled by default per campaign (open pixel + link wrapping). DKIM signing is configured at the Sending Server level — paste the DNS records AcelleMail generates into your domain. If you continue using SendGrid as the sending driver, the existing SendGrid DKIM/SPF records keep working unchanged.
  7. 7. Test deliverability + cut over

    Send a test campaign to GlockApps or Mail-Tester (free). Aim for 9.5/10. Run the next live campaign from AcelleMail in parallel for one cycle, watch open/click rates against your prior baseline, then turn off SendGrid Marketing Campaigns. Most teams cut over inside a week. The transactional Email API can stay if you want — AcelleMail uses SendGrid as a sending driver with the same API key.
運用適合性

セルフホストが適していない場合

セルフホスト型メールマーケティングはトレードオフです:低コストと完全な所有権の引き換えに、運用責任を負います。以下のような状況では、マネージド SaaS の方が適しているかもしれません。

  • You don't want to operate any server infrastructure

    AcelleMail is a self-hosted PHP application — you provision a VPS, install PHP-FPM + a web server, point a domain, and maintain backups. Teams that prefer a fully managed cloud service with no servers to operate may pick SendGrid (or another cloud platform) and accept the recurring subscription cost. The tradeoff is between recurring SaaS spend and one-time license + ops responsibility.

  • Your traffic is dominated by transactional API sends

    SendGrid's core product is the transactional Email API (high-volume API + SMTP relay for app-generated mail like password resets, receipts, notifications). If your workload is 95% transactional and 5% marketing, paying for AcelleMail's marketing layer may be optional. Many teams use both: SendGrid for transactional traffic + AcelleMail for marketing campaigns, paired through AcelleMail's SendGrid sending driver.

  • You require a managed reputation / SOC 2 cloud sender

    SendGrid manages IP reputation, blocklist monitoring, and SOC 2 compliance for the cloud service. AcelleMail self-hosted relies on the underlying sending service (SES, SendGrid, Mailgun, etc.) for IP reputation; the application layer doesn't replace the deliverability work that a managed cloud provider does on shared/dedicated IP pools.

  • You need 24/7 vendor support included

    AcelleMail bundles 6 months of email support with each license; ongoing support is community-driven via the CodeCanyon comments and knowledge base. SendGrid offers higher-tier support plans (Standard, Premier) bundled with paid tiers. Teams with strict 24/7 SLA requirements typically pair AcelleMail with a separate SLA-backed sending service like AWS SES or SendGrid itself.

ユースケース別コスト

3 つの購入者シナリオ

コスト数値は、検証済みのエントリーティア価格と、該当する場合は計算機で見積もったレンジを組み合わせています。数値を比較してください。最適な選択は、上述の運用トレードオフに対するチームの体力に依存します。

  • SaaS team — transactional + product newsletter

    状況: 8,000 trial signups + 2,000 paid customers, 50,000 transactional emails/month (signup, password reset, billing), 10,000 marketing emails/month (weekly newsletter + 4-step onboarding drip).

    SendGrid のコスト: SendGrid Email API tier covering 50K transactional sends + Marketing Campaigns paid tier covering 2K contacts + 10K sends. Both billed monthly through Twilio.

    AcelleMail のコスト: $80 once + $10/mo VPS + ~$6/mo SES (60K sends × $0.0001). Or keep SendGrid as the sending driver in AcelleMail and pay SendGrid only for the transactional volume; the marketing platform layer becomes free after the one-time license.

  • Marketing agency — 50 client lists

    状況: Email service for 50 small-business clients, average 2,000 subscribers each, monthly newsletter + occasional promo.

    SendGrid のコスト: SendGrid: agency operates its own tenant layer over Subusers; reseller billing built externally. SendGrid subscription tier scaled to aggregate volume.

    AcelleMail のコスト: $199 Extended License once + $40/mo VPS + ~$30/mo SES total across all clients on one install. Built-in SaaS layer: per-client login, plans, dunning, 6 payment gateways.

  • Indie newsletter — 5,000 subscribers

    状況: Weekly newsletter, no automation flows, no transactional traffic worth automating.

    SendGrid のコスト: SendGrid Marketing Campaigns Free tier ("6,000 emails per month and store up to 2,000 contacts") does not cover 5,000 contacts; a paid Marketing Campaigns tier is required.

    AcelleMail のコスト: $80 license + $5/mo VPS + ~$0.30/mo SES (3K weekly sends × $0.0001). Recovers ~24 months of equivalent paid SaaS subscription if previously paying for hosted email.

運用者向け詳細

移行を実施する運用者向け

下記の見出しをクリックすると、技術的な詳細に展開できます。上のマーケティングページですでに扱った内容と同じものです — ページをすばやくスキャンできるようにここでは折りたたんでいますが、実作業を行うエンジニアのためにいつでも利用できます。

SendGrid → AcelleMail の完全な移行 — すべてのステップを展開

上で扱った 7 ステップのプレイブックを、すべてのアクションを運用者向けに展開したものです。所要時間:技術的セットアップ約半日、その後リストの複雑さに応じて 1〜5 日でテンプレート & 自動化を再構築。

  1. 1. Export from SendGrid. In SendGrid Marketing Campaigns, export contacts as CSV from Contacts → All Contacts → Export to CSV. For programmatic export, the Marketing Campaigns Contacts API at GET /marketing/contacts returns subscriber records with custom fields. Export campaign HTML from each campaign's detail view; the Single Sends API can also retrieve campaign content. For transactional Templates, the Templates API returns versions and HTML.
  2. 2. Get AcelleMail. Buy the Regular License — $80 on CodeCanyon. Download the ZIP, upload to your server, run the web installer (5 minutes — sets DB, admin user, cron). PHP 8.1+, MySQL ≥ 5.7 or MariaDB ≥ 10.3, ~512 MB RAM minimum. The installation guide walks through cPanel, DigitalOcean, AWS, and Docker.
  3. 3. Configure your sending service. In Sending Servers → Add, you can keep using SendGrid: pick the SendGrid driver, paste your existing API key, and AcelleMail will route through the same sender you already trust. Or pick Amazon SES (cheapest), Mailgun, SparkPost, or generic SMTP. The 8 built-in drivers live in app/SendingServers/Drivers/Vendors/. Run the test-send to confirm.
  4. 4. Import contacts + custom fields. In Lists → Create List, recreate your SendGrid lists with their custom-field schema (SendGrid Custom Fields map to AcelleMail subscriber custom fields one-to-one). Use Import → Upload CSV and map columns. Tags map directly. For lists over 100K contacts, use the chunked import or seed via the REST API.
  5. 5. Recreate templates and campaigns. For Templates, paste your SendGrid HTML into AcelleMail's template editor. Substitution syntax differs: SendGrid Templates use Handlebars-style {{firstName}}; AcelleMail uses {{ subscriber.first_name }}. Subscriber-attribute access is equivalent. For Marketing Campaigns Automations, rebuild trigger flows in Automation → New Workflow using the visual builder.
  6. 6. Configure tracking + DKIM. AcelleMail tracking is enabled by default per campaign (open pixel + link wrapping). DKIM signing is configured at the Sending Server level — paste the DNS records AcelleMail generates into your domain. If you continue using SendGrid as the sending driver, the existing SendGrid DKIM/SPF records keep working unchanged.
  7. 7. Test deliverability + cut over. Send a test campaign to GlockApps or Mail-Tester (free). Aim for 9.5/10. Run the next live campaign from AcelleMail in parallel for one cycle, watch open/click rates against your prior baseline, then turn off SendGrid Marketing Campaigns. Most teams cut over inside a week. The transactional Email API can stay if you want — AcelleMail uses SendGrid as a sending driver with the same API key.
機能別詳細 — 2 製品の相違点と回避策

上の並列表は機能パリティを示しています。ここでは自明でない注釈を含む各行の補足コンテキストを掲載します — 一方のプラットフォームが「部分対応」で回避策が必要な場合に有用です。

Email creation

  • Spintax / dynamic content: AcelleMail includes spintax + per-subscriber merge fields. SendGrid Templates support Handlebars-style substitution and conditionals; spintax-style randomization is not in the published Templates API.
  • A/B testing: AcelleMail supports subject-line and content split tests on every license. SendGrid Marketing Campaigns supports A/B testing on the paid Marketing Campaigns tiers.
  • Multi-language UI: AcelleMail ships 18 locales for the admin UI. The SendGrid dashboard UI language follows the user account locale set in Twilio Console.

Lists & segmentation

  • Unlimited subscribers (software cap): AcelleMail imposes no software-side cap; limits come from the database and server. SendGrid Marketing Campaigns charges by contact storage tier ("store up to 2,000 contacts" on the Free tier per the product page).

Automation & flows

  • RSS-to-email: AcelleMail can pull RSS feeds into scheduled campaigns. SendGrid customers typically build RSS-to-email by polling externally and POSTing to the Mail Send API.

Deliverability

  • Multiple sending services: AcelleMail ships 8 native drivers (SES, SendGrid, SparkPost, Mailgun, Elastic Email, Blastengine, Gmail, generic SMTP). SendGrid is itself the sending service — it does not relay through other providers.
  • Click maps + spam scoring: AcelleMail provides click heatmaps and SpamAssassin-style scoring on each campaign. SendGrid records click events in Stats; spam-score scanning is not in the public API.

Integrations

  • SMTP relay: AcelleMail itself is a marketing platform; outbound SMTP is delegated to your sending server (which can be SendGrid). SendGrid offers SMTP relay endpoint smtp.sendgrid.net per its docs.
  • WordPress / WooCommerce sync: AcelleMail provides an official WordPress / WooCommerce plugin. SendGrid is reachable from WordPress via plugins like SMTP plugins; the SendGrid for WordPress plugin was deprecated by Twilio.
  • Custom plugin SDK: AcelleMail ships a four-pattern Hook system (REGISTRY, EVENT, FILTER, BEHAVIOR) — see <a href="https://acellemail.com/for/developers">Plugin SDK</a>. SendGrid extension is via the public REST API; there is no in-process plugin runtime.

SaaS / multi-tenancy

  • Multi-tenant workspaces: AcelleMail Extended ($199) ships a reseller layer with customer accounts, plans, and billing. SendGrid Subusers provide per-subuser sending isolation; reseller billing is built outside SendGrid.
  • Subscription plans + payment gateways: AcelleMail bundles 6 payment gateways (Stripe, PayPal, Braintree, Razorpay, Paystack, Offline). SendGrid does not include subscription billing primitives for resellers of its own service.
  • White-label / remove vendor branding: AcelleMail Extended removes branding for reseller use. SendGrid offers Link Branding for outbound emails; the dashboard remains SendGrid/Twilio-branded.
  • Reseller billing / dunning: AcelleMail's Cashier package covers subscriptions, prorated upgrades, and dunning. SendGrid does not provide reseller billing primitives.

Operations

  • Self-hosted on your servers: AcelleMail is a PHP application — runs under PHP-FPM + nginx/Apache on hardware you control. SendGrid is a Twilio-operated cloud service.
  • Cron / background workers: AcelleMail relies on a system cron entry that triggers campaign workers. SendGrid customers run their own schedulers when triggering Mail Send / Single Sends; SendGrid hosts the actual delivery infrastructure.
  • On-premise / air-gapped deployment: AcelleMail can run fully on-premise or in air-gapped environments. SendGrid is cloud-only.
  • GDPR data residency control: AcelleMail data lives wherever you host the install. SendGrid is operated from Twilio infrastructure (US-headquartered); see <a href="https://www.twilio.com/en-us/legal/privacy" target="_blank" rel="noopener">twilio.com/legal/privacy</a> for the published data-handling terms.

Cost & ownership

  • License model: AcelleMail Regular is $80 one-time; Extended is $199 (includes lifetime point/minor updates + 6 months support). SendGrid is a recurring subscription billed by Twilio; specific tier costs vary — see sendgrid.com/pricing for current values.
  • Source code visibility: AcelleMail ships full unencrypted PHP source. SendGrid is a closed-source cloud service; only the published REST/SMTP API surface is documented.
規模別コスト比較 — 3 つの購入者シナリオを並べて

上の TCO カードはエントリーティアの数値を示しています。このビューでは 3 つの購入者シナリオすべてを積み上げて、お客様の連絡先量と送信頻度に最も近いものを選べるようにしています。

SaaS team — transactional + product newsletter

  • 状況: 8,000 trial signups + 2,000 paid customers, 50,000 transactional emails/month (signup, password reset, billing), 10,000 marketing emails/month (weekly newsletter + 4-step onboarding drip).
  • SendGrid のコスト: SendGrid Email API tier covering 50K transactional sends + Marketing Campaigns paid tier covering 2K contacts + 10K sends. Both billed monthly through Twilio.
  • AcelleMail のコスト: $80 once + $10/mo VPS + ~$6/mo SES (60K sends × $0.0001). Or keep SendGrid as the sending driver in AcelleMail and pay SendGrid only for the transactional volume; the marketing platform layer becomes free after the one-time license.

Marketing agency — 50 client lists

  • 状況: Email service for 50 small-business clients, average 2,000 subscribers each, monthly newsletter + occasional promo.
  • SendGrid のコスト: SendGrid: agency operates its own tenant layer over Subusers; reseller billing built externally. SendGrid subscription tier scaled to aggregate volume.
  • AcelleMail のコスト: $199 Extended License once + $40/mo VPS + ~$30/mo SES total across all clients on one install. Built-in SaaS layer: per-client login, plans, dunning, 6 payment gateways.

Indie newsletter — 5,000 subscribers

  • 状況: Weekly newsletter, no automation flows, no transactional traffic worth automating.
  • SendGrid のコスト: SendGrid Marketing Campaigns Free tier ("6,000 emails per month and store up to 2,000 contacts") does not cover 5,000 contacts; a paid Marketing Campaigns tier is required.
  • AcelleMail のコスト: $80 license + $5/mo VPS + ~$0.30/mo SES (3K weekly sends × $0.0001). Recovers ~24 months of equivalent paid SaaS subscription if previously paying for hosted email.

正確な配信者数と送信頻度に対するカスタム値については、コスト削減計算機をご利用ください。

率直な対抗ポジショニング — 切り替えに対するよくある反論

SendGrid またはあらゆる SaaS から移行する前に、すべての運用者が検討する 4 つの反論。誇張なしに回答します — これらは現実的なトレードオフであり、最適な選択はチームに依存します。

1.「切り替えのコストは節約額を上回る。」

率直な評価:約 500 連絡先未満のリストでは、SendGrid の無料またはエントリーティアの方が、月額 5〜10 ドルの VPS と AcelleMail ライセンスを運用するよりも安い可能性があります — 運用者の時間を勘定に入れる前ですら。損益分岐点は通常 1,000〜5,000 連絡先の間に位置します。判断前にコスト計算機で独自の数値を試算してください。

2.「セルフホストでは到達性が低下する。」

ウォームアップなしに自己管理 MTA を運用する場合は事実です。AcelleMail がマネージド送信サービス(Amazon SES、SendGrid、Mailgun、Postmark)経由で転送する場合は事実ではありません — これらのベンダーが IP レピュテーションを維持し、AcelleMail はキャンペーンとトラッキングを統制するだけです。この構成では SendGrid との受信箱配置パリティに到達するのは例外ではなく標準です。

3.「うちのチームに別のツールを学ぶ時間はない。」

もっともな懸念です。AcelleMail の UI は共通のパターン(キャンペーンビルダー、オーディエンスリスト、自動化フロー)を反映しているため、ほとんどの SendGrid ユーザーは初日から生産的です。実際の時間消費は多段階の自動化とテンプレートライブラリの再構築です — 数週間ではなく複雑さに応じて 1〜5 日を見込んでください。

4.「AcelleMail がメンテナンスされなくなったらどうする?」

セルフホストはリスクを逆転させます:お客様はソースの永久コピーを所有します。ベンダーの料金変更、廃止、買収によりプラットフォームが取り上げられることはありません。アップデートが停止しても、既存のインストールは稼働を続けます。料金、機能、シャットダウンに関するベンダーの決定が一方的な SaaS と比較してください。

よくある質問

よくある質問

SendGrid からAcelleMailへ、購読者データを失わずに移行できますか?
はい。SendGrid Marketing Campaigns はダッシュボードから、または Marketing Campaigns Contacts API の GET /marketing/contacts 経由で CSV としてコンタクトをエクスポートします。AcelleMailのインポートはカスタムフィールドマッピング付きの CSV を受け付け、非常に大きなリスト向けには XLSX または直接 DB シードにも対応します。Custom Fields とタグはAcelleMailの購読者カスタムフィールドへ 1 対 1 でマッピングできます。5,000 コンタクト未満のリストは半日、広範な自動化ロジックを再構築する場合は 2〜3 日を見込んでください。
AcelleMailに切り替えた後も SendGrid を配信エンジンとして使い続けられますか?
はい — SendGrid はAcelleMailの 8 種の組み込み配信ドライバーの 1 つです(app/SendingServers/Drivers/Vendors/SendGrid/)。Sending Servers → Add → SendGrid に既存の SendGrid API キーを貼り付ければ、AcelleMailは既にお使いの SendGrid アカウントを経由してルーティングします。このパターンは一般的で、AcelleMailがマーケティングプラットフォームとコンタクトデータベースとして動作し、SendGrid が実際の SMTP 配信と到達性監視を引き続き担当します。
AcelleMailの自動化は SendGrid Marketing Campaigns Automations と比べてどうですか?
AcelleMail Automation2 は trigger / wait / condition / send / tag-update / segment-move ノードを備えたビジュアルワークフロービルダーを搭載しており、複数ステップのジャーニーをコードなしで UI から設定できます。SendGrid Marketing Campaigns Automations は有料の Marketing Campaigns 階層で利用可能で、コンタクトイベントフロー向けのトリガーベース自動化を提供します。どちらも複数ステップのジャーニーをサポートしており、プラットフォーム選定の違いは、マーケティング層をセルフホスト(AcelleMail)にしたいか、完全マネージド(SendGrid)にしたいかです。
SendGrid が Free 階層を提供しているのに、なぜAcelleMailは $80 を請求するのですか?
AcelleMail Regular License($80 買い切り)は、生涯のポイント + マイナーアップデート、6 か月のサポート、完全な PHP ソースコードを含む商用ライセンスであり、メールあたり・コンタクトあたりの定期費用はありません。SendGrid Marketing Campaigns Free 階層は "6,000 emails per month and store up to 2,000 contacts" をカバーし、Email API Free trial は 60 日間で 1 日 100 通をカバー、その後は有料の Email API 階層が必要です。それらの Free 上限を超えると SendGrid は月額課金します。$80 は別のバンドルをカバーします — ビジュアル自動化、プラグイン SDK、8 種の配信ドライバー、多言語 UI、マルチテナント SaaS 層($199 Extended)です。
1 つのAcelleMailインストールで複数のクライアントアカウントを運用できますか?
はい — それがAcelleMail Extended License($199)の役割です。顧客アカウント、サブスクリプションプラン、6 種の決済ゲートウェイ(Stripe、PayPal、Braintree、Razorpay、Paystack、Offline)、日割りアップグレード、督促、ホワイトラベルブランディングを備えたマルチテナント層をバンドルしています。SendGrid は Subuser 単位の送信分離のため Subusers を提供しますが、エンド顧客向けのリセラー課金はインテグレーター側で構築します。アーキテクチャの詳細は For Agencies ページをご覧ください。
AcelleMailは SendGrid が提供するのと同じ到達性ツールを含みますか?
どちらのプラットフォームも SPF/DKIM レコード生成を表示します。AcelleMailの配信サーバー単位の設定は公開すべきレコードを表示し、SendGrid Domain Authentication は SendGrid 経由でルーティングされるメールに対して同じ機能を提供します。実際の到達性 — IP レピュテーション、ブロックリスト監視、ISP リレーション — は配信サービスから生まれます。AcelleMailは SES、SendGrid、Mailgun、SparkPost、任意の SMTP 経由でルーティングできるため、到達性層は指定したプロバイダーに依存します。SendGrid Email API のマネージドレピュテーションは SendGrid の配信サービスの機能であり、マーケティングプラットフォーム層の機能ではありません。
AcelleMailと SendGrid では必要なスタックはどう違いますか?
AcelleMail: PHP 8.1+、MySQL ≥ 5.7 または MariaDB ≥ 10.3、最小 ~512 MB RAM、~50K までのリストには 1 GB 推奨。nginx または Apache の背後で PHP-FPM 上で動作します。SendGrid は Twilio がマネージするクラウドサービスのため、顧客側でホストするスタックはありません。顧客側のサーフェスは REST API または SMTP リレーエンドポイントです。
AcelleMailにはプラグイン SDK がありますか?
はい。AcelleMailは 4 パターンの Hook システム(REGISTRY、EVENT、FILTER、BEHAVIOR)を搭載しています — プラグインは storage/app/plugins/ 配下に配置し、配信ドライバー、決済ゲートウェイ、UI パネル、ライフサイクルフックを登録できます。4 つのパターンと実装例(Postal MTA、Paddle ゲートウェイ、AI プラグイン)は プラグイン SDK ドキュメントを参照してください。SendGrid の拡張は公開 REST API と Event Webhook 経由で行い、インプロセスのプラグインランタイムはありません。
トランザクション専用 API 送信にはどちらが適していますか?
マーケティングキャンペーン UI を必要としないトランザクション専用ワークロード(サインアップ確認、パスワードリセット、課金通知)には、SendGrid Email API がそのトラフィック向けに専用設計されており、無料試用も提供されています。AcelleMailも SendingServer ドライバー経由でトランザクション送信を扱えますが、コアバリューはマーケティングプラットフォーム層です。多くのチームは両方をペアにし、マーケティングキャンペーンにはAcelleMail、トランザクションには SendGrid Email API を使い、同じ送信ドメインを共有しています。
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SendGrid は各所有者の商標です。本ページは AcelleMail が作成した客観的な製品比較であり、当社は SendGrid と提携、推薦、後援関係にはありません。引用されたすべての事実は、上にリンクされた公開ドキュメントから出典しています。誤りがあれば contact@acellemail.com までご報告いただければ訂正いたします。