Spam Resource: DMARC to be required at Gmail in 2024

Al Iverson just released another interesting post on Spam Resource:

If you dig into the newly published upcoming sender requirements from Google, you’ll unearth three points that relate to DMARC. These are important enough that I wanted to highlight them specifically.First, note that Gmail is moving to a “p=quarantine” policy for gmail.com. That means it is no longer safe to send mail as (anything)@gmail.com except when doing so via Gmail’s infrastructure. This new policy update is Google telling the world to spam filter mail that says it’s from a gmail.com email address, but doesn’t pass email authentication tests. This is a big deal. Gmail, Yahoo, and many other mailbox providers are going to filter unauthenticated messages much more harshly as a result.My memory’s a little fuzzy, but I remember a freemium SMB-focused ESP that had a free “newsletter service” that I think they’ve long since shut down. The platform let you send as yourself, so they served up an awful

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