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SMTP Error 447

Category: Other
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Description: Your outgoing message timed out because of issues concerning the incoming server.

What does this mean?

Your mail server was not able to process the entire list of email recipients intended for the message. Some configurations have a recipient maximum that will cause this error.

How to fix SMTP Error 447?

Reduce the number of recipients the email message is intended for. Many default configurations have a maximum of 10.