Category
SPF, DKIM, DMARC, BIMI, domain verification, MX records, Return-Path
DKIM keys should rotate every 6-12 months. Like password rotation but for email signing. This guide walks the AcelleMail rotation flow + the 30-day dual-key transition + verification at each step.
Read more →SPF looks simple: list your sending IPs. The real-world version: 10-lookup limits, include-chains, the difference between -all and ~all, SPF flattening at scale. This is the operator's deep dive.
Read more →Going from no DMARC to p=reject all at once breaks your own legitimate mail. The 3-stage migration (none → quarantine → reject) is the safe path. This guide walks the 90-day plan, what to monitor at each stage, when to roll back.
Read more →VMC (Verified Mark Certificate) costs $1,500/yr per domain and takes 4-8 weeks to obtain. This guide walks the cost math, the trademark requirements, the alternative paths, and a decision framework for whether VMC is right for your sending...
Read more →You've set up a custom tracking domain. Now scale it: multiple tracking domains for reputation isolation, HTTPS enforcement, multi-region routing, programmatic verification. This is the advanced companion to the basic setup guide.
Read more →The 5-minute setup: pick a bounce subdomain, publish the MX record, set the sending-server config, verify. This is the practical companion to [Return-path and envelope-sender explained](/kb/articles/return-path-and-envelope-sender-explained...
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 →Email deliverability runs on DNS. SPF, DKIM, DMARC, MX, custom-tracking-domain CNAME, BIMI — that's the full setup. This guide walks each in order with the exact records to publish, how AcelleMail verifies them, what each does.
Read more →You published the SPF / DKIM / DMARC records. AcelleMail says "Pending" hours later. This guide explains what DNS propagation actually is, why it takes time, what controls the speed (TTL), and when to wait vs investigate.
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 →By default every link in your emails routes through acellemail.com's tracking redirect. Replace with click.yourdomain.com — same redirect mechanics, your own brand. This guide walks the setup + the CNAME + the link-report verification.
Read more →New to email sending? These are the 3 DNS records you absolutely need before sending a single campaign. This guide is the basics — what each does, what to publish, how AcelleMail verifies them.
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