> On 16 May 2018, at 22.18, Marc Perkel <m...@perkel.com> wrote: > > Is it possible to run a bash script for authentication where a 0 exit code > indicates success and a non-zero is failure? What I'm trying to do is create > a shadow IMAP server that authenticates against a different server. That way > my server will use the same passwords as an existing server. > > So what I would need is for dovecot to pass the username and password to my > script, I attempt to log in remotely and if I succeed I allow access on my > side. My side will be used to configure black lists and where spam is dragged > from their side to my side. (I'm a spam filtering company) >
Lua passdb https://wiki.dovecot.org/AuthDatabase/Lua <https://wiki.dovecot.org/AuthDatabase/Lua> on dovecot 2.3 can be used or if you can make your external server act as auth policy server, then you could use https://wiki.dovecot.org/Authentication/Policy <https://wiki.dovecot.org/Authentication/Policy> available since dovecot 2.2.25 Sami
