Package: msmtp Version: 1.8.3-1 Severity: normal When injecting mail via /usr/sbin/sendmail if the client program does not generate a message ID then one won't be provided by msmtp resulting in messages going out without a message ID at all. This isn't an unusal thing for simple scripts or similar to do and results in messages that are out of spec.
-- System Information: Debian Release: 10.1 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.19.0-6-amd64 (SMP w/56 CPU cores) Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages msmtp depends on: ii adduser 3.118 ii debconf [debconf-2.0] 1.5.71 ii libc6 2.28-10 ii libgnutls30 3.6.7-4 ii libgsasl7 1.8.0-8+b2 ii ucf 3.0038+nmu1 Versions of packages msmtp recommends: ii ca-certificates 20190110 Versions of packages msmtp suggests: ii msmtp-mta 1.8.3-1 -- debconf information excluded