What do I do to fix: "The IMAP command "APPEND" (to Sent) failed with server error: Internal error occurred. Refer to server log for more information."
Where is the server log?
What do I do to fix this?
I have already done a hard boot and the same error happens.
iMac 21.5″, macOS 10.15
Hey Lusaah,
Let's check the following things to see if it helps with sending emails:
If you can’t send emails in Mail on Mac
* Make sure the outgoing (SMTP) mail server is specified as directed by the provider of your email account. See Verify an email account’s outgoing server.
* Choose Window > Connection Doctor, then follow the instructions displayed in the Details column.
If there’s a firewall problem, verify that firewall software isn’t blocking email traffic on port 25, 465, or 587. Also check whether you’re affected by another firewall, such as software installed separately from macOS or built into an internet sharing router, or administered by your email account provider. Contact the appropriate person for information.
Let us know if this helps!
Best regards.
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