Здравствуйте!
freebsd 4.10
принимаю почту fetchmail'ом, смотрю ее mutt'ом.
когда из mutt хочу отправить сообщение - приходит извещение что этого сделать не удалось:

Date: Fri, 22 Oct 2004 10:06:16 +0400 (MSD)
From: Mail Delivery Subsystem <MAILER-DAEMON>
To: <cadavo@it3000>
Subject: Returned mail: see transcript for details
Auto-Submitted: auto-generated (failure)

[-- Вложение #1 --]
[-- Тип: text/plain, кодировка: 7bit, размер: 0,4K --]

The original message was received at Fri, 22 Oct 2004 10:06:09 +0400 (MSD)
from localhost [127.0.0.1]

   ----- The following addresses had permanent fatal errors -----
<djuna@4unet.ru>
    (reason: 573 cadavo@it3000 failed to route the address)

   ----- Transcript of session follows -----
... while talking to mail.4unet.ru.:
>>> MAIL From:<cadavo@it3000> SIZE=468
<<< 573 cadavo@it3000 failed to route the address
554 5.0.0 Service unavailable

[-- Вложение #2 --]
[-- Тип: message/delivery-status, кодировка: 7bit, размер: 0,3K --]

Reporting-MTA: dns; it3000
Received-From-MTA: DNS; localhost
Arrival-Date: Fri, 22 Oct 2004 10:06:09 +0400 (MSD)

Final-Recipient: RFC822; djuna@4unet.ru
Action: failed
Status: 5.0.0
Diagnostic-Code: SMTP; 573 cadavo@it3000 failed to route the address
Last-Attempt-Date: Fri, 22 Oct 2004 10:06:16 +0400 (MSD)

• Отправка почты, unk, 17:55 , 24-Окт-04, (1)