email security Archives

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18 Sep 2026

Easier API Access, New Image Controls—On the Road to YNOT Mail Nova

New API and SMTP controls and an image search-visibility setting give customers more control today—and offer a small preview of the thinking behind YNOT Mail Nova....

29 Apr 2026

ARC Email Protocol Experiment Ends as Industry Shifts to DKIM2 Standard

by Dave Murphy

in Authentication, Deliverability, Featured Posts

Comments

The IETF has proposed reclassifying ARC (Authenticated Received Chain) email protocol as 'Historic,' effectively ending the experiment due to reliability issues. This means email marketers can no longer depend on ARC to protect mail authentication when messages pass through intermediaries, while the industry transitions to the more robust DKIM2 protocol....