Public bug reported:
postfix-mta-sts-resolver will not start on resolute:
2026-05-10 21:15:31 INFO MAIN: MTA-STS daemon starting...
2026-05-10 21:15:31 INFO MAIN: Starting eventloop...
2026-05-10 21:15:31 INFO MAIN: uvloop enabled.
Traceback (most recent call last):
File "/usr/bin/mta-sts-daemon", line 33, in <module>
sys.exit(load_entry_point('postfix-mta-sts-resolver==1.5.0',
'console_scripts', 'mta-sts-daemon')())
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "/usr/lib/python3/dist-packages/postfix_mta_sts_resolver/daemon.py",
line 144, in main
evloop = asyncio.get_event_loop()
File "/usr/lib/python3/dist-packages/uvloop/__init__.py", line 206, in
get_event_loop
raise RuntimeError(
...<2 lines>...
)
RuntimeError: There is no current event loop in thread 'MainThread'.
I believe this is this issue/fix from upstream:
https://github.com/Snawoot/postfix-mta-sts-resolver/pull/114
(Summary: Starting with Python 3.14 -- which is the version shipping with
resolute -- asyncio.get_event_loop() fails if there isn't an event loop. Need
to call new_event_loop() to start. Further explained in the upstream pull
linked above.)
(1) Ubuntu release
Description: Ubuntu 26.04 LTS
Release: 26.04
(2) Package Version
postfix-mta-sts-resolver 1.5.0-1build1
(3) Expected: postfix-mta-sts-resolver would start and continue to run.
(4) Got: postfix-mta-sta-resolver exited after reporting the exception
shown above.
** Affects: postfix-mta-sts-resolver (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2152184
Title:
postfix-mta-sts-resolver doesn't start on resolute
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