identify MUA connecting?

[Juan Pablo]

On 2014-07-28 18:14, Reindl Harald wrote:
> from where should that information come?

That is what I was not sure. I did not know what information was
possible available. I was thinking or hoping something same as http logs

> dovecot has IP, auth-method, username, passwword, TLS
> that is logged - there is no more information available

I see unfortunate but thank you for this information

> grep the logs and analyze IP's
> reslove the PTR's and you get some useful informations

not of use as their business device can be used from home where also 
their personal device may be