Hello,
I'm looking for a way to access to a POP/IMAP account as another user different than me, but using my password. That is, I'm "someone@domain.com" and I want to access to "anotherone@domain.com" mailbox using the password of "someone@domain.com", not the "anotherone@domain.com" (something similar to master passwords, but without sharing any password). Obviously, in my LDAP backend I can configure something to authorize "someone" to access to "anotherone"'s mailbox.
At this momment, I'm trying to use someone@domain.com@anotherone@domain.com as username, with a passdb that uses %{username}@%{domain_first} to authenticate the user, but I'm having problem to configure a userdb map to get the mailbox, because the %{domain_first} variable returns just "domain.com". To fix this, I could use "someone@anotherone@domain.com", but this has problems with virtual domains an different users with same username (someone@domain.com and someone@otherdomain.com).
Looking at documentation, at [1], in the "auth_user" variable says: "... If username changes during authentication, this value contains the original username..." what leads me to think that there is some way to change the user during the authentication process, but I don't know how or maybe I'm assuming wrong.
Any help with this? Thank you[1] http://wiki.dovecot.org/Variables
Angel L. Mateo Martínez Sección de Telemática Área de Tecnologías de la Información y las Comunicaciones Aplicadas (ATICA) http://www.um.es/atica Tfo: 868887590 Fax: 868888337