Here is my /var/lib/dpkg/info/ssmtp.config file.
set -e . /usr/share/debconf/confmodule if [ -f /etc/ssmtp/ssmtp.conf ] then for v in `grep -E "^(root|mailhub|rewriteDomain|hostname|FromLineOverride)=" /etc/ssmtp/ssmtp.conf` do export $v done db_set ssmtp/root "$root" if [ -n "$mailhub" ] then if [ `expr index "$mailhub" :` -ne 0 ] then db_set ssmtp/port "${mailhub#*:}" db_set ssmtp/mailhub "${mailhub%:*}" else db_set ssmtp/port 25 db_set ssmtp/mailhub "$mailhub" fi fi if [ -n "$rewriteDomain" ] then db_set ssmtp/rewritedomain "$rewriteDomain" fi if [ -n "$hostname" ] then db_set ssmtp/hostname "$hostname" fi if [ -n "$FromLineOverride" ] then if [ "$FromLineOverride" = "YES" ] then db_set ssmtp/fromoverride true else db_set ssmtp/fromoverride false fi fi fi db_input medium ssmtp/root || true db_go db_input medium ssmtp/mailhub || true db_go db_input low ssmtp/port || true db_go db_input medium ssmtp/rewritedomain || true db_go db_input low ssmtp/hostname || true db_go db_input medium ssmtp/fromoverride || true db_go # Program End exit 0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1897523 Title: upgrade bug from 18.04 to 20.04; dpkg: error processing package ssmtp (--configure): installed ssmtp package post-installation script subprocess returned error exit status 2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ssmtp/+bug/1897523/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs