Thank you Alex, this misconfig is now ok, but this is not the solution of my problem.

Reading well my main.cf, I saw that I miss a fundamentally row:
local_transport = virtual

No howto I've read report this line, arghh!!!

Now it works!

Well, I have to do a lot of work to become really sure waht I've done to make it work, but now I have a running server to use and make experience!

Bye and thank you all!
Nando

Alex Palenschat ha scritto: 
Dec 12 14:16:40 kines postfix/trivial-rewrite[12738]: 
warning: do not list domain kines.dyndns.org in BOTH 
mydestination and virtual_mailbox_domains 
    

Nando, I don't have much experience with using Postfix for virtual
domains and Feizhou may correct me but I think Postfix does not know
what to do with the mail. This error is self-explanatory. If you want a
virtual mailbox domain for this domain then do not list it in
mydestination. Remove $mydomain and $myhostname from mydestination.

Have you thoroughly read:

http://www.postfix.org/VIRTUAL_README.html




Alex

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