This part does not make sense. You don't host gmail.com, so why did
you configure it in your Postfix settings? Where is this mail
supposed to go?
> How i send mails accross mutt (script comand) and configure this
> 3 relays accounts.
There are support venues for mutt, not here. Likewise, for your
script questions, this is not an appropriate place. This seems to be
a "how do I use email?" question.
The mutt client has for many years supported sending via SMTP. Yes,
Postfix can be configured as a null client (see the
STANDARD_CONFIGURATION_README) and for sender-dependent relaying (see
the SOHO_README), but don't need Postfix at all, and in fact, you
would probably be better off just using mutt's native sending
http://rob0.nodns4.us/ Offlist GMX mail is seen only if "/dev/rob0" is in the Subject: