Mozilla Thunderbird: Forwarding Message results in ‘Mail delivery failed’ error
Have you ever forwarded a message (for example to a Gmail account) in Mozilla Thunderbird, and gotten one of these pesky message?
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
email@example.com
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