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Blacklisted

rkeirstead
rkeirstead
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A message sent to me never appeared in my mailbox but was labeled "blacklisted by user" I cannot find a way to undo this !

550: 5.7.1 [PF] Mail rejected by policy. (Blacklisted by user)

A message sent to me never appeared in my mailbox but was labeled "blacklisted by user" I cannot find a way to undo this ! 550: 5.7.1 [PF] Mail rejected by policy. (Blacklisted by user)

All Replies (1)

Rick (Scooter)
Rick (Scooter)
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A little research indicates that it is probably outisde your direct control and not related to Thunderbird. Is your account an institutional Microsoft account?

See here: https://learn.microsoft.com/en-us/exchange/troubleshoot/email-delivery/ndr/fix-error-code-550-5-7-1-in-exchange-online

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