This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Cannot send messages

  • 1 phendula
  • 1 inayo le ngxaki
  • 7 views
  • Impendulo yokugqibela ngu Toad-Hall

more options

When trying to send an email, I receive the following error message: "An error occurred while sending mail: The mail server sent an incorrect greeting: cdptpa-cmomta03 cmsmtp ESMTP server temporarily not available AUP#O-1090." This has only recently occurred and I do not know how to resolve the problem. Please help.

When trying to send an email, I receive the following error message: "An error occurred while sending mail: The mail server sent an incorrect greeting: cdptpa-cmomta03 cmsmtp ESMTP server temporarily not available AUP#O-1090." This has only recently occurred and I do not know how to resolve the problem. Please help.

All Replies (1)

more options

Please post the following: In Thunderbird

  • Help > Troubleshooting Information
  • do not select checkbox to include account names
  • click on 'Copy text to clipboard' button
  • In this forum question, right click in a 'Post a Reply' text box and select 'Paste'
  • You can remove all info on fonts and printers, but nothing else.