BIMI Setup — Show Your Logo in Gmail (and Beyond)
BIMI (Brand Indicators for Message Identification) shows your verified logo next to your messages in Gmail, Yahoo, Apple Mail. Recipients se...
4 18Knowledge Base
Everything you need to run AcelleMail in production.
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.
Most read
Return-Path vs Envelope-Sender — What Each Does in AcelleMail
The "From" address recipients see isn't the address that handles bounces. That's the envelope-sender (also called the return-path or MAIL FR...
7 15Dedicated vs Shared IP Address
Your sending IP's reputation directly determines whether your emails land in the inbox or spam folder. The choice between a dedicated IP (yo...
3 9Latest articles
Troubleshooting
My Campaign Is Stuck in "Sending" — What to Check
A campaign that still shows "Sending" hours after you hit send. Walk through the three UI signals that tell you what's actually happening — then the two-click fix that resolves it for most teams.
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Troubleshooting
Decoding Bounce Messages — Read the Tracking Log Like a Pro
Hard bounces, soft bounces, deferred — what AcelleMail's bounce log is actually telling you, and which bounces you can ignore vs. which need action. Read the UI first, dive into the SMTP codes only when needed.
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Migration & Comparison
ActiveCampaign → AcelleMail Migration — Visual Walkthrough
Export contacts from ActiveCampaign, import into AcelleMail in 6 clicks. UI walkthrough plus optional API migration for large accounts.
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Migration & Comparison
Klaviyo → AcelleMail Migration — Visual Walkthrough
Export your Klaviyo profiles as CSV, import into AcelleMail via the 6-click wizard. Visual walkthrough plus power-user API path for large Klaviyo accounts.
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Troubleshooting
My Emails Are Landing in Spam — UI-First Diagnostic
Spam-folder placement happens for measurable reasons. Walk the Insights page, the Sending Server config, and the Test diagnostic — three UI checks isolate the cause before anyone has to look at headers.
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Email Infrastructure
Choosing the Queue Driver: Database vs Redis vs SQS for AcelleMail
AcelleMail ships with `QUEUE_CONNECTION=database` as the default — and that's the right choice for installations up to ~500k emails per day. Past that threshold, database-queue contention starts to dominate worker time, and switching to Red...
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Developer Guide
AcelleMail Webhook Signature Verification and Replay Protection
When you receive a webhook from AcelleMail (or AcelleMail receives one from a third-party event source like Meta), the receiver has no built-in trust that the request came from where it claims. This guide walks the HMAC-SHA256 signature ver...
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Migration & Comparison
MailerLite → AcelleMail Migration — Visual Walkthrough
Export subscribers from MailerLite, import into AcelleMail in 6 clicks. Visual walkthrough on both sides with API-driven option for large lists.
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Email Design & Content
Email Accessibility: WCAG Best Practices for Bulk Email
Roughly 15% of your subscribers have a permanent or situational disability that affects how they read email — screen reader users, low-vision readers, color-blind users, motor-impaired clickers, cognitive-load-sensitive readers. The Europea...
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Migration & Comparison
ConvertKit (Kit) → AcelleMail Migration — Visual Walkthrough
Export subscribers from ConvertKit (now Kit), import into AcelleMail in 6 clicks. Visual walkthrough on both sides with API-driven option.
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Migration & Comparison
Brevo (Sendinblue) → AcelleMail Migration — Visual Walkthrough
Export contacts from Brevo, upload to AcelleMail in 6 clicks. UI walkthrough on both sides plus optional API-driven migration for large lists.
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Troubleshooting
My Automation Isn't Triggering — How to Diagnose from the UI
A welcome series or drip that won't fire on new subscribers. The Automations dashboard shows you whether the workflow is active, what trigger it's listening for, and which subscribers are eligible — three checks resolve most cases.
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