Problem buidling doveot from sources

[jmoellers]

'morning and best wishes for 2022!

I have a problem with dovecot 2.3.7.2 on Kubuntu 20.04:
Jan 10 10:30:18 firefly dovecot: imap-login: Error: Failed to initialize SSL server context: Can't load SSL certificate: error:140AB18F:SSL routines:SSL_CTX_use_certificate:ee key too small: user=<>, rip=172.16.0.51, lip=172.16.0.1, session=<J9oh/DbVo4SsEAAz>
Searching the net for a cure, I read that adding a directive to the dovecot configuration file would help (but it was already there) or then rebuilding that certificate should solve the problem but it didn't.
So I thought that maybe I could find out exactly which certificate was "too small".
As this error message is output in two different functions:
* client_sni_callback and
* client_init_ssl
(both in src/login-common/client-common.c), I wanted to add some debugs to further investigate.

After installing the sources (apt-get source dovecot), I first tried to build without any modifications:
cd dovecot-2.3.7.2/
./configure
:
make
Which got me this:
/root/dovecot-2.3.7.2/src/lib-mail/test-message-parser.c:90: undefined reference to `message_parser_init_from_parts'

Can anyone help me get dovecot to build?

Thanks in advance,

Josef

[jlittle]

Have you run

sudo apt build-dep dovecot

You may have to enable source repositories first.