Email deliverability

Email deliverability

Email deliverability 3 min read

Gmail and Yahoo bulk sender requirements (and where they stand in 2026)

Gmail and Yahoo changed the rules in early 2024. Two years on, here is what is actually enforced and what to do about it.

AD Admin

Jul 1, 2026

Email deliverability

Email deliverability 3 min read

Email throttling: what causes it and how to recover

Email throttling is mailbox providers telling you to slow down. Here is what triggers it and the recovery path back to full throughput.

AD Admin

Jun 29, 2026

Email deliverability

Email deliverability 3 min read

GDPR and email verification: what you need to know

Email verification is GDPR-compliant when handled correctly. Here is the legal framework, what to document, and how to choose a compliant vendor.

AD Admin

Jun 16, 2026

Email deliverability

Email deliverability 4 min read

Spam traps: what they are and how to avoid them in 2026

Spam traps are addresses set up specifically to catch spammers. Hitting one can blocklist you for months. Here is how they work and how to avoid them.

AD Admin

Jun 6, 2026

Email deliverability

Email deliverability 3 min read

Email blocklists: how to check if you are on one (and how to get off)

Blocklists are the silent killers of email delivery. Here is which ones matter, how to check if you are on one, and the playbook for getting off.

AD Admin

Jun 5, 2026

Email deliverability

Email deliverability 3 min read

Catch-all domains explained (and how to send to them safely)

Catch-all domains accept every address at the SMTP layer, even non-existent ones. Here is what that means and how to send to them without bouncing.

AD Admin

Jun 4, 2026

Email deliverability

Email deliverability 3 min read

Role-based email addresses: segment them or block them?

Role-based emails (info@, admin@, sales@) sit in a tricky middle ground. Here is the framework for deciding what to do with them.

AD Admin

Jun 3, 2026

Email deliverability

Email deliverability 3 min read

Disposable email domains in 2026: the operator list

There are now 130,000+ disposable email domains in active use. Here is the operator landscape and the blocklist strategy that actually works.

AD Admin

Jun 2, 2026

Email deliverability

Email deliverability 3 min read

Soft bounce vs hard bounce: the difference and how to handle each

Hard bounces stick around forever. Soft bounces are temporary. Here is the difference, what triggers each, and exactly how to handle them.

AD Admin

May 27, 2026