Hey, big senders! It's time for another update regarding enhanced sender requirements put forth by a large mailbox provider.
This time around, it is French mailbox provider La Poste (lapost.net), and they are adopting authentication-related sender requirements similar to those that you're likely already aware of, courtesy of so many other large providers.
Some details are still TBD, but Simon Bressier from La Poste has been kind enough to warn us that starting in September 2025, email messages that do not pass SPF, DKIM and DMARC checks will see the inside of the spam folder "at best," implying that other, additional sanctions could befall non-compliant senders.
There remain some open questions here around which senders (all?) will need to meet these new requirements, exactly what level of pass is required (DMARC policy, alignment requirements, etc.), and more. I'm sure as the dust settles, we'll learn more, and I'll be sure to pass along updated information when I have it.
In the mean time, if you don't like seeing your mail getting relegated to the spam folder, my recommendation is to make sure that all of your emails pass both SPF and DKIM authentication checks, and that at least one of them "aligns" with the from address, so you'll pass DMARC checks, too.
Hey, big senders! It's time for another update regarding enhanced sender requirements put forth by a large mailbox provider.
This time around, it is French mailbox provider La Poste (lapost.net), and they are adopting authentication-related sender requirements similar to those that you're likely already aware of, courtesy of so many other large providers.
Some details are still TBD, but Simon Bressier from La Poste has been kind enough to warn us that starting in September 2025, email messages that do not pass SPF, DKIM and DMARC checks will see the inside of the spam folder "at best," implying that other, additional sanctions could befall non-compliant senders.
There remain some open questions here around which senders (all?) will need to meet these new requirements, exactly what level of pass is required (DMARC policy, alignment requirements, etc.), and more. I'm sure as the dust settles, we'll learn more, and I'll be sure to pass along updated information when I have it.
In the mean time, if you don't like seeing your mail getting relegated to the spam folder, my recommendation is to make sure that all of your emails pass both SPF and DKIM authentication checks, and that at least one of them "aligns" with the from address, so you'll pass DMARC checks, too.
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