It's a long standing bug. sieve-plugin library, ie lib90_sieve_plugin.so, has references on some symbols defined in libdovecot-lda.so but is not linked against this library: ldd -d -r /usr/lib64/dovecot/lib90_sieve_plugin.so linux-vdso.so.1 (0x00007fff3176b000) libdovecot-sieve.so.0 => /usr/lib64/dovecot/libdovecot-sieve.so.0 (0x00007f453948a000) libc.so.6 => /lib64/libc.so.6 (0x00007f45392b7000) libdovecot-storage.so.0 => /usr/lib64/dovecot/libdovecot-storage.so.0 (0x00007f4539141000) libdovecot.so.0 => /usr/lib64/dovecot/libdovecot.so.0 (0x00007f4538f67000) /lib64/ld-linux-x86-64.so.2 (0x00007f453956e000) undefined symbol: mail_deliver_ctx_get_log_var_expand_table (/usr/lib64/dovecot/lib90_sieve_plugin.so) undefined symbol: mail_deliver_get_return_address (/usr/lib64/dovecot/lib90_sieve_plugin.so) undefined symbol: mail_send_rejection (/usr/lib64/dovecot/lib90_sieve_plugin.so) undefined symbol: mail_deliver_hook_set (/usr/lib64/dovecot/lib90_sieve_plugin.so) Reproducible: Always Steps to Reproduce: 1. Build dovecot with sieve support activated 2. Check the sieve-plugin library 3. Actual Results: the sieve-plugin library have missing symbols which make use of this plugin fail Expected Results: Sieve plugin is to be usable A quiet simple patch can solve this issue
Created attachment 825179 [details] output from emerge --info =net-mail/dovecot-2.3.19.1-r1
Created attachment 825181 [details, diff] Patch to dovecot sieve plugin build system to link it against libdovecot-lda Linking sieve plugin library against libdovecot-lda library fixes the issue
Created attachment 825183 [details, diff] Patch proposal to dovecot ebuild to apply dovecot sieve plugin patch
This is NOT a Gentoo specific bug and probably shouldn't be considered a bug by upstream. The upstream troubleshooting documentation might need to be improved. Confirmed similar behavior on Debian and Alpine Linux. This a configuration mistake The dovecot wiki guide on enabling sieve instructs the user to enable it for LDA or LMTP using: Correct Configuration. --- protocol lmtp { mail_plugins = $mail_plugins sieve postmaster_address = postmaster@example.com } --- and , or --- protocol lda { mail_plugins = $mail_plugins sieve postmaster_address = postmaster@example.com } --- https://doc.dovecot.org/2.3/configuration_manual/sieve/configuration/#basic-configuration If you make a mistake and load the sieve plugin for protocol sieve, then the clients get an internal error occurred message when connecting to the manage sieve service. The error looks like this (shortened). You get similar messages and the same behavior in the above distributions . Tested using claws-mail managesieve(test@mail.lan): Error: Couldn't load required plugin /usr/lib64/dovecot/lib90_sieve_plugin.so: dlopen() failed: /usr/lib64/dovecot/lib90_sieve_plugin.so: u Incorrect configuration. Note protocol --- protocol sieve { mail_plugins = $mail_plugins sieve } --- According to the Dovecot wiki mail_plugins is currently useless for protocol sieve. There is also a warning against loading IMAP plugins. https://doc.dovecot.org/2.3/configuration_manual/sieve/managesieve/configuration/#sieve-managesieve-configuration
