Hi Guilherme, This was my old 2.3 dovecot.conf file
## Dovecot configuration file # If you're in a hurry, see http://wiki2.dovecot.org/QuickConfiguration # "doveconf -n" command gives a clean output of the changed settings. Use it # instead of copy&pasting files when posting to the Dovecot mailing list. # '#' character and everything after it is treated as comments. Extra spaces # and tabs are ignored. If you want to use either of these explicitly, put the # value inside quotes, eg.: key = "# char and trailing whitespace " # Most (but not all) settings can be overridden by different protocols and/or # source/destination IPs by placing the settings inside sections, for example: # protocol imap { }, local 127.0.0.1 { }, remote 10.0.0.0/8 { } # Default values are shown for each setting, it's not required to uncomment # those. These are exceptions to this though: No sections (e.g. namespace {}) # or plugin settings are added by default, they're listed only as examples. # Paths are also just examples with the real defaults being based on configure # options. The paths listed here are for configure --prefix=/usr # --sysconfdir=/etc --localstatedir=/var # Enable installed protocols !include_try /usr/share/dovecot/protocols.d/*.protocol # A comma separated list of IPs or hosts where to listen in for connections. # "*" listens in all IPv4 interfaces, "::" listens in all IPv6 interfaces. # If you want to specify non-default ports or anything more complex, # edit conf.d/master.conf. #listen = *, :: listen = * # Base directory where to store runtime data. #base_dir = /var/run/dovecot/ # Name of this instance. In multi-instance setup doveadm and other commands # can use -i <instance_name> to select which instance is used (an alternative # to -c <config_path>). The instance name is also added to Dovecot processes # in ps output. #instance_name = dovecot # Greeting message for clients. #login_greeting = Dovecot ready. # Space separated list of trusted network ranges. Connections from these # IPs are allowed to override their IP addresses and ports (for logging and # for authentication checks). disable_plaintext_auth is also ignored for # these networks. Typically you'd specify your IMAP proxy servers here. #login_trusted_networks = # Space separated list of login access check sockets (e.g. tcpwrap) #login_access_sockets = # With proxy_maybe=yes if proxy destination matches any of these IPs, don't do # proxying. This isn't necessary normally, but may be useful if the destination # IP is e.g. a load balancer's IP. #auth_proxy_self = # Show more verbose process titles (in ps). Currently shows user name and # IP address. Useful for seeing who are actually using the IMAP processes # (eg. shared mailboxes or if same uid is used for multiple accounts). #verbose_proctitle = no # Should all processes be killed when Dovecot master process shuts down. # Setting this to "no" means that Dovecot can be upgraded without # forcing existing client connections to close (although that could also be # a problem if the upgrade is e.g. because of a security fix). #shutdown_clients = yes # If non-zero, run mail commands via this many connections to doveadm server, # instead of running them directly in the same process. #doveadm_worker_count = 0 # UNIX socket or host:port used for connecting to doveadm server #doveadm_socket_path = doveadm-server # Space separated list of environment variables that are preserved on Dovecot # startup and passed down to all of its child processes. You can also give # key=value pairs to always set specific settings. #import_environment = TZ ## ## Dictionary server settings ## # Dictionary can be used to store key=value lists. This is used by several # plugins. The dictionary can be accessed either directly or though a # dictionary server. The following dict block maps dictionary names to URIs # when the server is used. These can then be referenced using URIs in format # "proxy::<name>". dict { #quota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext } # Most of the actual configuration gets included below. The filenames are # first sorted by their ASCII value and parsed in that order. The 00-prefixes # in filenames are intended to make it easier to understand the ordering. !include conf.d/*.conf # A config file can also tried to be included without giving an error if # it's not found: !include_try local.conf Met hartelijke groet, Robert Op wo 7 okt 2026 om 15:40 schreef Guilherme Puida Moreira < [email protected]>: > Looking at the terminal log attached, we see this line: > > Oct 05 06:49:17 immip.org dovecot[81229]: doveconf: Fatal: Error in > configuration file /etc/dovecot/dovecot.conf line 24: The first setting > must be dovecot_config_version > > In the default configuration (tested in resolute), > dovecot_config_version is the first setting in that file > > # grep -Ev '^#|^$' /etc/dovecot/dovecot.conf | head -n1 > dovecot_config_version = 2.4.0 > > Could you attach your local /etc/dovecot/dovecot.conf file so we can > debug this further? > > > ** Changed in: dovecot (Ubuntu) > Status: Confirmed => Incomplete > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/2169535 > > Title: > package dovecot-core 1:2.4.2+dfsg1-3ubuntu2.1 failed to > install/upgrade: old dovecot-core package postinst maintainer script > subprocess failed with exit status 1 > > Status in dovecot package in Ubuntu: > Incomplete > > Bug description: > failure during do-release-upgrade > > ProblemType: Package > DistroRelease: Ubuntu 26.04 > Package: dovecot-core 1:2.4.2+dfsg1-3ubuntu2.1 > ProcVersionSignature: Ubuntu 6.8.0-146.146-generic 6.8.12 > Uname: Linux 6.8.0-146-generic x86_64 > ApportVersion: 2.34.1-0ubuntu0.1 > Architecture: amd64 > CasperMD5CheckResult: unknown > CloudArchitecture: x86_64 > CloudID: hetzner > CloudName: hetzner > CloudPlatform: hetzner > CloudSubPlatform: unknown > Date: Mon Oct 5 06:49:17 2026 > ErrorMessage: old dovecot-core package postinst maintainer script > subprocess failed with exit status 1 > Python3Details: /usr/bin/python3.14, Python 3.14.4, python3-minimal, > 3.14.3-0ubuntu2 > PythonDetails: /usr/bin/python3.14, Python 3.14.4, python-is-python3, > 3.13.3-1+build1 > RebootRequiredPkgs: Error: path contained symlinks. > RelatedPackageVersions: > dpkg 1.23.7ubuntu1 > apt 3.2.0 > SourcePackage: dovecot > Title: package dovecot-core 1:2.4.2+dfsg1-3ubuntu2.1 failed to > install/upgrade: old dovecot-core package postinst maintainer script > subprocess failed with exit status 1 > UpgradeStatus: Upgraded to resolute on 2026-10-05 (0 days ago) > > To manage notifications about this bug go to: > > https://bugs.launchpad.net/ubuntu/+source/dovecot/+bug/2169535/+subscriptions > > -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2169535 Title: package dovecot-core 1:2.4.2+dfsg1-3ubuntu2.1 failed to install/upgrade: old dovecot-core package postinst maintainer script subprocess failed with exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dovecot/+bug/2169535/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
