Hi, and thanks for filing this report. It looks like there is an issue with a user. However, there appears to be a newer version of dovecot that has reverted a recent security change:
dovecot (1:2.2.24-1ubuntu1.3) yakkety-security; urgency=medium * REGRESSION UPDATE: Revert CVE-2017-2669 fix as this version of dovecot is not affected by the security flaw and the change caused a regression in passdb and userdb dictionary authentication backends debian/patches/CVE-2017-2669.patch: Remove the patch -- Tyler Hicks <tyhi...@canonical.com> Tue, 11 Apr 2017 14:16:31 +0000 Can you please try your update again and make sure you are getting the latest version, 2.2.24-1ubuntu1.3? ** Changed in: dovecot (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1681845 Title: package dovecot-core 1:2.2.24-1ubuntu1.2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dovecot/+bug/1681845/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs