chad8787's profile

13 Messages


370 Points

Thursday, September 14th, 2023 1:25 PM

Emails bouncing back undelivered

All outgoing emails have been bouncing back as undelivered for my email

Here is the message I am getting:

 host []
    SMTP error from remote mail server after pipelined end of data:
    550-5.7.26 This mail is unauthenticated, which poses a security risk to the
    550-5.7.26 sender and Gmail users, and has been blocked. The sender must
    550-5.7.26 authenticate with at least one of SPF or DKIM. For this message,
    550-5.7.26 DKIM checks did not pass and SPF check for []

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Brand User

10.3K Messages


139.4K Points

5 months ago


Can you go ahead and try once more? I have updated the TXT SPF record for your domain which should allow it to begin working properly.