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The return mail address was invalid

  • 1 reply
  • 1 has this problem
  • 2 views
  • Last reply by sfhowes

BDS1959
BDS1959
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I have a user that has three separate email accounts in Thunderbird. The one account cannot send email - gets the message in the attachment. Any ideas? F.Y.I., it's a gmail account. But all three are gmail.

Thanks!

I have a user that has three separate email accounts in Thunderbird. The one account cannot send email - gets the message in the attachment. Any ideas? F.Y.I., it's a gmail account. But all three are gmail. Thanks!
Attached screenshots

All Replies (1)

sfhowes
sfhowes
  • Top 10 Contributor
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Open Tools/Account Settings, select the problem account in the left pane, and look at the Outgoing Server (SMTP) entry in the right pane. Does it point to a server that is defined for a different Gmail account?