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Issue between Thunderbird and Comcast email?

  • 3 wótegrona
  • 1 ma toś ten problem
  • 2 naglěda
  • Slědne wótegrono wót sfhowes

jenshayco3
jenshayco3
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I've been using Thunderbird and Comcast forever, never a problem. Last week Thunderbird quit sending e-mails. I've changed all passwords and re-checked SMTP settings and uninstalled and re-installed Thunderbird and nothing works. I can not fix this. Please help. This is the error message:

An error occurred while sending mail: The mail server sent an incorrect greeting: resomta-po-10v.sys.comcast.net resomta-po-10v.sys.comcast.net Excessive failed authentication, ESMTP server temporarily not available.

I've been using Thunderbird and Comcast forever, never a problem. Last week Thunderbird quit sending e-mails. I've changed all passwords and re-checked SMTP settings and uninstalled and re-installed Thunderbird and nothing works. I can not fix this. Please help. This is the error message: An error occurred while sending mail: The mail server sent an incorrect greeting: resomta-po-10v.sys.comcast.net resomta-po-10v.sys.comcast.net Excessive failed authentication, ESMTP server temporarily not available.

Wšykne wótegrona (3)

sfhowes
sfhowes
  • Top 25 Contributor
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When you changed passwords, did you delete the old ones in Saved Passwords in Options, restart TB, then enter the new passwords when prompted? Is the outgoing server smtp.comcast.net on 465, SSL/TLS, normal password authentication? What is the antivirus and its settings for scanning email?

jenshayco3
jenshayco3 Pšašaŕ
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Yes. I did everything listed above.

My antivirus is Norton.

sfhowes
sfhowes
  • Top 25 Contributor
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You probably want to add the TB profile folder as an exclusion or disable whatever setting in Norton applies scanning to outgoing mail. You may also have to disable scanning of secure connections.