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Email Authentication
A message can pass SPF and pass DKIM individually and still fail DMARC. Alignment is the missing piece — what it checks, why it fails, and how to fix it.
Email Authentication
SPF fail, softfail, and PermError all mean different things and need different fixes. The exact causes, how to tell them apart, and how to fix each one — with a free record generator.
Email Deliverability
Transactional through one ESP, marketing through another, cold outbound through a third — each fine alone. Together they cause SPF lookup overflow, DKIM misalignment, and split domain health. Here's the audit.
Email Authentication
Your logo shows in Gmail and Yahoo only once DMARC is enforcing, the SVG passes the Tiny P/S check and a VMC is issued. What you need to qualify, the exact DNS record, and the trademark step that takes the longest.
Email Authentication
DMARC passing doesn't guarantee inbox placement. Here are the 7 real reasons your authenticated email still lands in spam — and exactly how to fix each one.
Email Authentication
If your emails are being rejected by Gmail or Yahoo, the cause is almost always authentication. Here's the exact 5-minute check — written by a 15-year ESP veteran.
Email Authentication
The four requirements Gmail and Yahoo now enforce. What happens when you fail each one — and how to fix it in order.
