Laposte.net will be requiring all email be authenticated

Starting on September 9th laposte.net will begin requiring email to have valid, aligned authentication. Mail that isn’t authenticated will start to be delivered to the spam folder or rejected at delivery time.

Full details should be published on Laposte’s postmaster page in the next few days but the gist of it is that you must have either SPF that passes and is aligned with the 5322 From: header or a DKIM signature that validates and is aligned with the 5322 From: header.

(Or both. Both is good.)

This will apply to most email, not just bulk email.

If you’ve already done the work to follow Gmail and Yahoo’s requirements for bulk senders then you’re already in compliance at laposte.

Yahoo's mailboxes are full
Changes happen, even if you don't keep up

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