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Thunderbird E mail authentication when sending emails

  • 1 cavab
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  • 1 view
  • Last reply by david

Geoff Stanway
Geoff Stanway
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When I try to send emails, I receive this message. "Sending of the message failed. An error occurred while sending mail. The mail server responded: [M1] Authentication required (6aecbed3-07a6-11ef-9de7-83bcbd00a978). Please verify that your email address is correct in your account settings and try again". I have checked as requested by this message, and everything appears to be in order. Can anyone help with this issue, please?

When I try to send emails, I receive this message. "Sending of the message failed. An error occurred while sending mail. The mail server responded: [M1] Authentication required (6aecbed3-07a6-11ef-9de7-83bcbd00a978). Please verify that your email address is correct in your account settings and try again". I have checked as requested by this message, and everything appears to be in order. Can anyone help with this issue, please?

All Replies (1)

david
david
  • Top 10 Contributor
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Maybe we can assist if you share screenshots of input server settings and SMTP server settings. Thank you.