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.

Avatar for Username

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

Problems with connection to SMTP server since upgrade to Thunderbird 128.4

  • Amul benn tontu
  • 0 am na jafe-jafe bii
richard391
richard391
more options

I have Thunderbird connected to a number of providers including hotmail and OVH, all configured for IMAP. OS = Linux Mint

Everything was working fine until I installed the upgrade to 128.4 offered by the Linux Mint update manager.

Since then it takes a very long time to even send a simple email with CPU usage going up to or even over 100% (multi-cores). Even in normal usage with nothing happening Thunderbird is using 25% of the CPU.

The sending process often times out giving a message that says the connection was lost to the SMTP server.

I have Thunderbird connected to a number of providers including hotmail and OVH, all configured for IMAP. OS = Linux Mint Everything was working fine until I installed the upgrade to 128.4 offered by the Linux Mint update manager. Since then it takes a very long time to even send a simple email with CPU usage going up to or even over 100% (multi-cores). Even in normal usage with nothing happening Thunderbird is using 25% of the CPU. The sending process often times out giving a message that says the connection was lost to the SMTP server.

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.