- Solved
Thunderbird (latest) smtp timeout large emails
I run a mail server here (VPOP3 as it happens). I have recently changed the HW it runs on to a Win 10 (yeuch!) NUK. All mail works fine except when I try sending emails t… (read more)
I run a mail server here (VPOP3 as it happens). I have recently changed the HW it runs on to a Win 10 (yeuch!) NUK. All mail works fine except when I try sending emails through it from Thunderbird (latest - 78.6.1 (32-bit)) from a Win 7 (64 bit ) PC. Simple emails or ones with small attachments go fine but over about 200k they timeout. My suspicion is that Micro$oft's Antimalware service is hogging too much of the CPU on the mail sever PC and the send is timing out part way through. I have throttled it back as much as poss with the powershell cmd:- Set-MpPreference -ScanAvgCPULoadFactor and it has improved it in as much as I have increased the size of the file that can be sent. Is there a timeout in Thunderbird I can increase so attacking it from the both ends? I have looked (desperately) for the old advance config but it seems to have disappeared. Any help or suggestions gratefully appreciated. I know I _can_ uninstall the anti-malware but would rather not.