Hey Peter.
No, but I did eventually test it from another pc using TB and found no
problems with same outgoing server settings. Then I deleted the outgoing
server in TB, created it again and it is working again.
The one that had the issue is running on a Ubuntu 25.04 and it is
installed using snap, and I have read somewhere that it can cause some
issues in other ways (snap installed TB) - I can't remember where I read
it and what specifically was the issues.
But You're right about the firewall - that prevented me initially from
sending until I remembered to open the port in the firewall👍
Only thing that happened between outgoing port 587 working Sunday and
NOT working Monday morning is a restart of TB - and my guess is that the
change I made to outgoing server was not saved somehow 🤔
I'll keep an eye on it.
Thanks,
/Finn
Den 25.08.2025 kl. 17.21 skrev Peter Peterse:
Finn,
Did you test it also from the outside of the server? Maybe the firewall
was not persistent.
Use an other cliënt maybe Thunderbird on your phone and see if that one
works.
Regards,
Peter
Eric Broch <[email protected]> schreef op 25 augustus 2025
15:40:26 CEST:
Thank you, Finn!
On 8/25/2025 4:48 AM, Qmail wrote:
Hi Eric / List
I'm having some issue with my port 587 - I have used port 465
for a long time but rumours has it that port 587 is preferred 🤨
due to safety
Well it is was working when submitting mails after being enabled
(Sunday) but this morning - NOPE error message :'You have to
check the settings in outgoing server bla..' so I had to
investigate..
In doing that I found a nice tool testssl.sh that shows a lot of
info regarding ssl/tls starttls (and a lot of other fancy
things) and want to share it in case you don't.
You can clone the dir or run in a container...
git clone --depth 1 https://github.com/drwetter/testssl.sh.git
<https://github.com/drwetter/testssl.sh.git>
You can also pull a container from dockerhub and run the tool -
docker run --rm -ti drwetter/testssl.sh -t smtp localhost:587 -
I haven't tried this though - more info in Readme.md from
https://github.com/drwetter/testssl.sh <https://github.com/
drwetter/testssl.sh>
Cd to the directory testssl.sh
I tested my port 587 by doing ./testssl.sh -t smtp localhost:587
Regards
/Finn
PS I'm almost sure it's Thunderbird that is causing my issues
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