Outgoing email SMTP timeouts after Thunderbird update
Had this problem suddenly crop up since the update of one of my accounts not sending mail due to timeouts. I've not changed any passwords or settings since I had it working last. The message is the "Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) [my workplace's SMTP server] timed out. Try again." one, and it's preventing me from sending any emails.
Specifics:
- It's one account (my work one: work runs an Outlook/Microsoft mail server).
- My personal account (gmail) sends fine. Both accounts recieve email fine too, so this is just one direction on one account.
Things I've tried:
- Switching my Firewall off makes no difference, so it's not a firewall problem
- It's not that the emails I'm trying to send are too large, one word test emails also don't send
- Extending the timeout time by 3x doesn't help
I also opened a second computer not yet running the latest version - the account worked fine. Then applied the upgrade and that broke things in exactly the same way as described above. So I'm pretty sure this is an issue caused by the upgrade in some way. Not sure if other people with Outlook servers are having the same problem or if there's any workaround available but would appreciate advice.
Všechny odpovědi (5)
Perhaps you could try to adjust your SMTP server port settings. Outlook servers support both ports 587 (STARTTLS) and also port 465 (SSL/TLS). Sometimes one breaks after updates.
- Port 465: A legacy port for SMTPS (SMTP over SSL/TLS). While still used, it's generally recommended to use port 587 with STARTTLS for more-secure email transmission. Try this one and see if that fixes your issue for the time being.
- Port 587: Is the recommended port for secure SMTP communication (SMTP with STARTTLS) when sending emails.
I think you already know how to do this: But (on desktop) go to thunderbird-> Account Settings -> (btm right) Edit SMTP Server. Then change the port and type to match the above:(port 465, SSL/TLS, Normal Password)
Let me know if this helped!
Thanks for the idea, though unfortunately that didn't help: tried 465 + SSL/TLS and got a server did not respond/could not be reached error (same with 465 + STARTTLS, though I'd assumed that wouldn't work anyway). Switching back to 587 + STARTTLS still gives timeouts as before.
OK, Thanks for the prompt reply.
Have you tried to reboot in Troubleshoot mode to see if an add-on might be causing the issue? Always a good idea to rule this one out.
Upravil uživatel ThundaMike dne
Thanks likewise - just tried that, but sadly no luck there either: I was only running one add-on in any case.
Thanks for your prompt replies James.
Please try the following if you haven't already:
1. Please try removing the add-on. Generally, Thunderbird Troubleshoot mode works but sometimes it doesn't! 2. Please try disabling all 3rd party software including anti-virus (often anti-virus blocks Thunderbird updates) as you probably know but can't hurt to try. (I know you tried disabling the firewall) 3. " work runs an Outlook/Microsoft mail server" <-- Have you tried filing a support request with your Microsoft admin? Microsoft runs a diversity :-) of email servers and can often change them unpredictably without warning which can result in SMTP i.e. sending email failing.
Cheers! ...Roland
Upravil uživatel Roland Tanglao dne
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