bug#69479: 30.0.50; Attaching files to gnus fails

[Alexander Prähauser]

If I attach a file to a mail, I get the following message:

smtpmail-send-it: Sending failed: 554 5.0.0 Error: failed to parse
message: failed to get content type for for child 1:mime: expected slash
after first token in response to .

This seems to happen regardless of attachment type, whether my init
was loaded or whether I'm using protonmail or gmx to send the mail.


In GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu, cairo version
 1.18.0) of 2024-02-08 built on Archlaptop
Repository revision: 08c81db7c8e522278fb2c8de8fbe556d109c135f
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12101011
System Description: Arch Linux

Configured using:
 'configure --with-x-toolkit=no'

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG
JSON LCMS2 LIBOTF LIBSYSTEMD LIBXML2 M17N_FLT MODULES NATIVE_COMP NOTIFY
INOTIFY OLDXMENU PDUMPER PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF
TREE_SITTER WEBP X11 XDBE XIM XINPUT2 XPM ZLIB

Important settings:
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  locale-coding-system: utf-8-unix

Major mode: Fundamental

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