Knowledge Base
Step-by-step tutorials for setup and deliverability, deep references for the REST API, and battle-tested playbooks for SaaS, e-commerce, and high-volume sending.
CAN-SPAM applies to every commercial email you send to a US recipient — fines reach $51,744 per violating message. This checklist walks the 7 rules, marks the ones AcelleMail enforces for you, and tells you exactly where to set the rest.
Read more →BIMI (Brand Indicators for Message Identification) shows your verified logo next to your messages in Gmail, Yahoo, Apple Mail. Recipients see brand trust at glance — open rates measurably rise. This guide walks the prerequisites + the setup...
Read more →Containerised AcelleMail trades a small ergonomic cost (volumes, image rebuilds, patch flows) for dev/prod parity and clean image-tag rollback. This guide ships a production-ready Dockerfile (with all wizard-required PHP extensions baked in...
Read more →AcelleMail's default queue driver is the database — fine for hobby installs, terrible for production. Switching to Redis cuts queue-dispatch latency by 10×, eliminates MySQL's `jobs`-table contention under load, and unlocks better worker au...
Read more →When messages don't arrive — late, bounced, missing entirely — the AcelleMail dashboard surfaces nine signals that tell you whether the issue is sending-side or recipient-side. Walk the checklist, fix from the UI in most cases.
Read more →AcelleMail has one Double opt-in toggle per list. This walkthrough shows exactly where the toggle lives, what the confirmation email looks like, and a buyer-style decision guide for when to turn it on.
Read more →Short DigitalOcean quickstart for AcelleMail — droplet sizing, image pick, the PTR gotcha, and outbound port 25 caveat. For the full DO-specific install (Cloud Firewall, Reserved IP, monitoring), and for the OS-level steps, follow the canon...
Read more →Ubuntu 22.04 LTS ("Jammy Jellyfish") is supported for AcelleMail through 2027. The install flow is nearly identical to Ubuntu 24.04 — same Ondrej PHP PPA, same MySQL 8.0, same nginx + certbot + supervisor stack. This is the quickstart with...
Read more →Export contacts from Mailchimp's Audience screen, import into AcelleMail in 6 clicks. This guide covers the UI on both sides; advanced API-driven migration in the collapsible section for power users.
Read more →Spread your volume across multiple SMTP + API senders to absorb downtime, isolate reputation per campaign type, and grow past any single vendor's cap. This guide walks the UI to add a second server, set up routing, and verify in the admin p...
Read more →Configure UTM tags once in your campaign settings — AcelleMail appends them to every link in the email automatically. This guide walks the campaign-level + global UTM settings, the post-send click report, and how the UTMs land in Google Ana...
Read more →When a recipient reads your email in dark mode, mail clients silently invert your colors — sometimes correctly, sometimes destructively. White logos disappear; black logos become white-on-light-grey; carefully-chosen brand colors get auto-s...
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