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

Thunderbird is not functioning

  • 1 reply
  • 2 have this problem
  • 1 view
  • Last reply by Wayne Mery

more options

I have used Thunderbird for a very long time. Currently on my desktop it is no longer receiving messages. Also when I go to send an email I get the following message.

Your message was sent but a copy was not placed in your sent folder (Sent) due to network or file access errors. You can retry or save the message locally to Local Folders Sent-!!!!!!!!!!!!!!. (The exclamation points is where my email address would be)

The email goes out but it is not saved locally.

On my laptop Thunderbird works just fine receiving both emails and sending emails. No problems there. Both systems are configured the same with firewall and antivirus (ESET). Both Thunderbird programs are also set to the identical settings for both the security and server settings.

Anyone have any thoughts on what I need to do. I have never experienced this issue before.

I have used Thunderbird for a very long time. Currently on my desktop it is no longer receiving messages. Also when I go to send an email I get the following message. '''Your message was sent but a copy was not placed in your sent folder (Sent) due to network or file access errors. You can retry or save the message locally to Local Folders Sent-!!!!!!!!!!!!!!. '''(The exclamation points is where my email address would be) The email goes out but it is not saved locally. On my laptop Thunderbird works just fine receiving both emails and sending emails. No problems there. Both systems are configured the same with firewall and antivirus (ESET). Both Thunderbird programs are also set to the identical settings for both the security and server settings. Anyone have any thoughts on what I need to do. I have never experienced this issue before.

All Replies (1)

more options

If you are using ESET/NOD32 security/AV then probability is very high it is causing your problems. According to ESET forums, you should temporarily disable SSL on ESET until they solve the problem per https://support.eset.com/en/kb3126-disable-ssl-filtering-in-eset-windows-products?ref=esf - the problem is being reported by dozens of users https://forum.eset.com/topic/26517-problems-with-thunderbird-and-imaps/ https://forum.eset.com/discover/

You might also inform them of your difficulty.