MXCorrect Blog

How BIMI works, why it demands DMARC enforcement first, and the exact DNS TXT record and VMC steps needed to get your logo next to your emails.

A field-by-field breakdown of DMARC aggregate (RUA) XML reports, so you can tell legitimate senders from spoofing attempts without third-party software.

Two SPF TXT records on one domain cause a permanent SPF failure, not “extra protection.” Learn why it happens and how to merge them safely.

What Gmail and Yahoo’s bulk sender rules actually require in your DNS, and how to check SPF, DKIM, DMARC and PTR records so your mail doesn’t get rejected or throttled.

DNSSEC doesn’t replace SPF/DKIM/DMARC — it protects the DNS lookups underneath them. Here’s when it’s worth enabling.

What MX priority actually controls, why you need a fallback record, and the mismatch mistakes that silently break mail delivery.

Before blaming your content or sender reputation, run through this 8-point DNS checklist — most deliverability problems start here.

How DKIM signing and verification actually works, how to publish your first selector record, and the most common setup mistakes.

A practical rollout path from monitoring to full enforcement, and the alignment mistake that trips up most DMARC deployments.

Hitting an SPF permerror from too many DNS lookups? Here’s what counts toward the 10-lookup limit and exactly how to flatten your record.