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Failed to send message. Authentication on the mail server (SMTP) was not possible

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  • 4 have this problem
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  • Last reply by david

Asistent Giovani
Asistent Giovani
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Hello, we have added a new email address and currently it is not possible to send emails from any email address in thunderbird. It reports an error: Failed to send message. Authentication on the mail server (SMTP) was not possible

Hello, we have added a new email address and currently it is not possible to send emails from any email address in thunderbird. It reports an error: Failed to send message. Authentication on the mail server (SMTP) was not possible
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david
david
  • Top 10 Contributor
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It may help if you post screenshot of your SMTP server settings. Thank you.

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