[Bug 273933] Re: thunderbird fails to email via smtp with message "An error has occurred sending mail: SMTP server error. The server responded: Unknown command contact your administrator for assistance"

[Alexander Sack]

this is a mail server issue. ask your admin to fix that.

to eliminate any doubt about that verify that the problem still exists
with a fresh profile.

** Changed in: thunderbird (Ubuntu)
       Status: Incomplete => Invalid

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thunderbird fails to email via smtp with message "An error has occurred sending mail: SMTP server error. The server responded: Unknown command contact your administrator for assistance"
https://bugs.launchpad.net/bugs/273933
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