Your bug report

#66602: 29.1; smtpmail-send-it fails to authenticate using auth-sources

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 66602@debbugs.gnu.org.

-- 
66602: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=66602
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