DJB-compatible checkpassword for phpBB MySQL user database, used for Dovecot IMAP
The interface is specified in http://cr.yp.to/checkpwd/interface.html
Dovecot related manual: http://wiki2.dovecot.org/AuthDatabase/CheckPassword
Debugging IMAP server:
$ python3
>>> import imaplib
>>> mail = imaplib.IMAP4_SSL('imap.server.com')
>>> mail.login('fiutek@gov.pl', 'password')
and check /var/log/mail.log on the server side.
Serge Victor 2014, https://random.re/
LGPLv3