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SMTP emails not being sent with defined domain

Description

There is a strange behaviour with emails being sent with SMTP method. If I define the hostname uranus.lan, everything is functional. However this breaks the mDNS authentication in a Mac.

Hostname is not correctly defined but X-TrueNAS-Host had the correct hostname, so emails work:

# cat /etc/resolv.conf nameserver 192.168.1.1 # hostname uranus.lan # hostname -f uranus.lan. # cat /var/log/mail.log # echo 'This is a test.' | mail -s 'Hello World' hello@domain.com Nov 26 02:50:45 uranus middlewared[1086]: sending mail to hello@domain.com Content-Type: multipart/mixed MIME-Version: 1.0 Subject: Hello World From: Uranus <mail@icloud.com> To: hello@domain.com Date: Sat, 26 Nov 2022 07:50:44 -0000 Message-ID: <truenas-20221126.075044.617651.b'-jhK'@uranus.lan> Content-Transfer-Encoding: 8bit X-Mailer: TrueNAS X-TrueNAS-Host: uranus.lan

If I define correctly the hostname, mDNS authentication is fixed, but emails are not being sent anymore:

# cat /etc/resolv.conf domain lan nameserver 192.168.1.1 # hostname uranus # hostname -f uranus.lan # echo 'This is a test.' | mail -s 'Hello Broken' hello@domain.com # cat /var/log/mail.log Nov 26 02:59:12 uranus middlewared[1086]: sending mail to hello@domain.com Content-Type: multipart/mixed MIME-Version: 1.0 Subject: Hello Broken From: Uranus <mail@icloud.com> To: hello@domain.com Date: Sat, 26 Nov 2022 07:59:10 -0000 Message-ID: <truenas-20221126.075910.998769.b'U1UN'@uranus> Content-Transfer-Encoding: 8bit X-Mailer: TrueNAS X-TrueNAS-Host: uranus

As you can see, X-TrueNAS-Host is not looking for the full hostname as it should, which makes the email to fail being sent.

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FlorenNovember 30, 2022 at 6:46 PM

Thank you ! I’ll wait for the 22.12.0 release.

Automation for JiraNovember 30, 2022 at 5:55 PM

This issue has now been closed. Comments made after this point may not be viewed by the TrueNAS Teams. Please open a new issue if you have found a problem or need to re-engage with the TrueNAS Engineering Teams.

CalebNovember 30, 2022 at 5:55 PM

Thanks for the report, we found that we weren't properly setting the hostname on SCALE early on and have since fixed this particular problem. It should be fixed in 22.12-RC.1. Trying that version (or waiting for 22.12.0 which is going through final QE tests) that would be great.

FlorenNovember 28, 2022 at 11:41 PM

Thanks !

Bonnie FollweilerNovember 28, 2022 at 2:51 PM

Thank you for your ticket submission .
I have moved this ticket into our queue to review now.
An engineering representative will update with any further questions or details in the near future.

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Katalon Platform

Created November 26, 2022 at 8:10 AM
Updated May 8, 2024 at 6:07 PM
Resolved November 30, 2022 at 5:55 PM