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.
Rocky Linux 9 is the community RHEL 9 rebuild — the right choice when your operations policy requires a Red Hat-family OS without paying for a RHEL subscription. CentOS Stream 9 and AlmaLinux 9 work identically. The four big differences fro...
Read more →Debian 12 ("Bookworm") is the lightest-weight production host for AcelleMail — same Linux family tree as Ubuntu, fewer pre-installed surprises, supported through 2028 (and through 2033 with Freexian ELTS). This guide covers the three meanin...
Read more →Ubuntu 24.04 LTS ("Noble Numbat") is the recommended host for a 2026 AcelleMail install. PHP 8.3 in universe, MySQL 8.0 from the official repo, supported until April 2029. This guide walks the install end-to-end — from a freshly-provisioned...
Read more →The "From" address recipients see isn't the address that handles bounces. That's the envelope-sender (also called the return-path or MAIL FROM). This guide separates the three sender concepts and shows where AcelleMail configures each.
Read more →When you send a campaign at "9am" — whose 9am? Yours, your subscribers'? AcelleMail's scheduler defaults to your account timezone. This guide walks the UI + timezone-aware patterns + send-time optimization.
Read more →A confirmation email is just the start. Layer in a delivery-day check-in, a 7-day review request, a 30-day cross-sell, a 60-day "we miss you". This guide builds the full post-purchase flow in AcelleMail's automation builder using tags or cu...
Read more →Twelve subject formulas, ranked by reliability across audiences and industries. With examples + when each formula applies + the AcelleMail subject-field walkthrough.
Read more →AcelleMail doesn't ship a native Zapier app, but the REST API + webhook system gives you everything you need to wire AcelleMail to the 7,000+ apps on Zapier. This guide walks both directions — AcelleMail as a Zapier action (POST to API), an...
Read more →AcelleMail can be operated as a multi-tenant SaaS where each customer signs up, picks a plan, pays via Stripe, and gets an isolated workspace (lists, campaigns, automations, sending quotas). This guide walks the end-to-end setup: Extended L...
Read more →A/B testing the subject lifts open rates 10-30% sustainably. AcelleMail's built-in A/B feature splits your list, picks the winner automatically, ships the winning variant to the rest. This guide walks the setup + the discipline that makes t...
Read more →Canada's Anti-Spam Legislation is one of the strictest in the world — fines reach CAD $10 million per violation. This guide covers express vs implied consent, what every Canadian CEM must contain, and how to record consent inside AcelleMail...
Read more →New blog post published? AcelleMail can detect it via RSS and auto-send to your list. This guide walks the RSS campaign type, the feed URL setup, and the template that maps RSS items into email blocks.
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