application specific passwords

[mj]

Hi,

Further to the other thread about password guessing activities against 
our dovecot, I would like to implement application specific passwords on 
our dovecot.

Googling results in some documents, but they are all a bit older:

> https://www.happyassassin.net/2014/08/26/adding-application-specific-passwords-to-dovecot-when-using-system-user-accounts/

> https://www.dgsiegel.net/news/2013_05_21-application_specific_passwords_for_dovecot

> http://www.justinbuchanan.com/blog/category/RoundCube

> http://www.justinbuchanan.com/blog/post/2012/12/02/Application-Specific-Passwords-for-Dovecot-and-Postfix

Those articles are interesting, but also rather old. (I realse that this 
does not neccesarily mean: irrelevant or bad)

Is there anone here with some additional notes, ideas, tips, trics on 
setting up application specific passwords with dovecot with virtual 
users? We are using samba AD as an authentication backend.

MJ