For anyone else who runs into the issue I had in the OP: This dovecot version problem doesn't seem to be contained to Google Cloud. I spun up a Digitalocean droplet for someone yesterday and had exactly the same problem as I did on GCP. I followed h…
And I've sorted out the auth issue with Rainloop. Running doveadm auth test [email protected] password showed me that dovecot was working.
The logs were showing that the domain was being dropped in the username by rainloop. I turned off short-login ove…
The version I was showing was: 184.108.40.206 (a3d0e1171).
I removed everything like you said and reinstalled. I had to be a bit more specific about the pkg removal though, I had to specify dovecot-core, dovecot-mysql, dovecot-pop3d and dovecot-imapd a…
I have tried to reinstall dovecot with an apt-get install dovecot-mysql and it refuses because of a dependency issue with a libmysql--etc. which doesn't exist, presumably, because mariadb is what's really installed.
I don't get a choice of the OS on click to deploy Google Cloud. But the setup is listed as: