Email sending via mail server stopped working

Hi! Mail stopped sending, maybe something has changed in the rules for connecting your mail server to Cloudflare?

Please, share more details. CF doesn’t have much to do with email.
Check your MX (if you’re receiving emails then this is OK), SPF and DMARC (these two help those servers you send emails to make sure that the origin of the emails is genuine).

Oh, sorry, and DKIM (this is the signing of the emails by the origin email servers), but I don’t see it there.

Hi, with these settings, mail on the site worked fine until yesterday, nothing changed, MX and DMARC were transferred from the provider’s settings

DKIM was not in the settings

the problem was solved by adding the 24 port of the mail server to the spf

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