package dovecot-core 1:2.2.24-1ubuntu1.2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Ian Gilmore]

An error occurred during installation

ProblemType: Package
DistroRelease: Ubuntu 16.10
Package: dovecot-core 1:2.2.24-1ubuntu1.2
ProcVersionSignature: Ubuntu 4.8.0-46.49-generic 4.8.17
Uname: Linux 4.8.0-46-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.3-0ubuntu8.2
Architecture: amd64
Date: Tue Apr 11 13:49:17 2017
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2015-12-19 (478 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
RelatedPackageVersions:
 dpkg 1.18.10ubuntu1
 apt 1.3.4
SourcePackage: dovecot
Title: package dovecot-core 1:2.2.24-1ubuntu1.2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to yakkety on 2016-10-17 (176 days ago)

[Joshua Powers (powersj)]

From log:

Apr 11 14:09:22 hostname dovecot[1071]: master: Fatal: service(auth) User doesn't exist: postfix (See service auth { unix_listener /var/spool/postfix/private/auth { user } } setting)
Apr 11 14:09:22 hostname systemd[1]: Failed to start Dovecot IMAP/POP3 email server.
Apr 11 14:09:22 hostname systemd[1]: dovecot.service: Failed with result 'exit-code'.

[Joshua Powers (powersj)]

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 <email address hidden> 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?

[Launchpad Janitor (janitor)]

[Expired for dovecot (Ubuntu) because there has been no activity for 60 days.]