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

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

Error message below appears when sending email. However,Email sends okay on second attempt.

  • 6 fhreagra
  • 1 leis an bhfadhb seo
  • 2 views
  • Freagra is déanaí ó christ1

more options

Tried compacting and clearing history, but neither worked.

Sending of message failed. Unable to open the temporary file C:\Users\Terry\AppData\Local\Temp\nsmail.tmp. Check your 'Temporary Directory' setting.

Tried compacting and clearing history, but neither worked. Sending of message failed. Unable to open the temporary file C:\Users\Terry\AppData\Local\Temp\nsmail.tmp. Check your 'Temporary Directory' setting.

All Replies (6)

more options

What is your anti-virus s/w?

more options

My anti-virus is McAfee.

more options

Exclude your Thunderbird profile folder from being scanned by McAfee. More information in this article.

https://wiki.mozilla.org/Thunderbird:Testing:Antivirus_Related_Performance_Issues#McAfee

more options

No, the article didn't seem to solve the problem.

Of the three suggestions in the article, I was able to : 1. Disable McAfee Anti-Spam Thunderbird Extension 2. Disable email attachment scanning

But unable to find in McAfee: 3. Disable scanning of Thunderbird files and folders

more options

Try this :- http://kb.mozillazine.org/Cannot_send_mail

This may help you . Let us know if this work !

Athraithe ag user669794 ar

more options

You'll need to create an exception in McAfee for your Thunderbird profile folder. To find your profile folder:

AppMenu button - Help - Troubleshooting Information - Profile Directory - Open Directory