[horde] Something wrong with IMP

[Jānis]

Hi!

I am getting such error when trying to send the letter:

Jun 30 16:30:22 server postfix/smtpd[13483]: NOQUEUE: reject: RCPT from
localhost[127.0.0.1]: 504 <localhost>: Helo comm
and rejected: need fully-qualified hostname; from=<figlji at domain0>
to=<user at domain1> proto=ESMTP helo=<localhost>

a bit on the system: on the "server" both horde2 and horde3 exists, each using
its own mysql database;
horde2 is working on virtual server domain1, horde3 - on virtual domain domain0

smtp backend - postfix, both users are virtual.

form the horde2/user i can send the letter to horde3/figlji, but the opposite
gives the above mentioned error.

What's wrong?

Janis
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