Package: courier-mta Version: 0.76.3-2 Severity: grave This package can't be newly installed on current sid due to a postinst failure. It looks this is due to the change from openssl to gnutls in 0.76.3-2.
This is also visible in the piuparts reports at https://piuparts.debian.org/sid/source/c/courier.html # DEBIAN_FRONTEND=noninteractive apt install courier-mta [...] Setting up courier-base (0.76.3-2) ... update-alternatives: using /usr/bin/deliverquota.courier to provide /usr/bin/deliverquota (deliverquota) in auto mode update-alternatives: using /usr/share/man/man5/maildir.courier.5.gz to provide /usr/share/man/man5/maildir.5.gz (maildir.5.gz) in auto mode update-alternatives: using /usr/bin/maildirmake.courier to provide /usr/bin/maildirmake (maildirmake) in auto mode update-alternatives: using /usr/share/man/man7/maildirquota.courier.7.gz to provide /usr/share/man/man7/maildirquota.7.gz (maildirquota.7.gz) in auto mode update-alternatives: using /usr/bin/makedat.courier to provide /usr/bin/makedat (makedat) in auto mode Generating DH parameters (3072 bits)... (might take long time) dpkg-statoverride: warning: --update given but /etc/courier/imapaccess does not exist Setting up courier-mta (0.76.3-2) ... update-alternatives: using /usr/bin/lockmail.courier to provide /usr/bin/lockmail (lockmail) in auto mode update-alternatives: using /usr/bin/preline.courier to provide /usr/bin/preline (preline) in auto mode /run/courier/esmtpd.pid.lock: No such file or directory /usr/bin/certtool is not supported in debian dpkg: error processing package courier-mta (--configure): subprocess installed post-installation script returned error exit status 1 Processing triggers for libc-bin (2.24-8) ... Errors were encountered while processing: courier-mta E: Sub-process /usr/bin/dpkg returned an error code (1) -- Niko Tyni nt...@debian.org