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The IMAP command “APPEND” (to folder/subfolder) failed with server error: Cannot parse message (took 0 ms).

I bought extra space on iCloud and set up a custom email domain. I am not attempting to use Mail to move my custom pop mail (stored locally) to a subfolder/mailbox on iCloud. about 90% of the emails I attempt to move cause a "Cannot parse message" failure.

I have ample free iCloud space. These emails are not large.

If this error is due to certain characters, would it help to export them locally first and pre-process them with a script first?

I'll have to move my mail to some other cloud service if I cannot get this to work.

Thanks!

Posted on Mar 6, 2024 12:28 PM

The IMAP command “APPEND” (to folder/subfolder) failed with server error: Cannot parse message (took 0 ms).

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