Permanent Delivery Failure

[MDaemon]

The attached message had PERMANENT fatal delivery errors!

After one or more unsuccessful delivery attempts the attached message has
been removed from the mail queue on this server.  The number and frequency
of delivery attempts are determined by local configuration parameters.

YOUR MESSAGE WAS NOT DELIVERED TO ONE OR MORE RECIPIENTS!

--- Session Transcript ---
 Wed 2005-06-15 08:02:16: Parsing Message <xxxxxxxxxxxxxxxxxx\pd50001819368.msg>
 Wed 2005-06-15 08:02:16: From: address@hidden
 Wed 2005-06-15 08:02:16: To: address@hidden
 Wed 2005-06-15 08:02:16: Subject: Re: SMTP Server
 Wed 2005-06-15 08:02:16: Message-ID:
 Wed 2005-06-15 08:02:16: Route slip host: 80.24.184.23
 Wed 2005-06-15 08:02:16: Route slip port: 25
 Wed 2005-06-15 08:02:16: Attempting SMTP connection to [80.24.184.23 : 25]
 Wed 2005-06-15 08:02:16: Waiting for socket connection...
 Wed 2005-06-15 08:02:16: Socket connection established (172.16.0.100 : 4847 -> 
80.24.184.23 : 25)
 Wed 2005-06-15 08:02:16: Waiting for protocol initiation...
 Wed 2005-06-15 08:02:38: <-- 220 servidor.andreu.es ESMTP Service (Lotus 
Domino Release 6.5) ready at Wed, 15 Jun 2005 08:01:25 +0200
 Wed 2005-06-15 08:02:38: --> EHLO aimme.es
 Wed 2005-06-15 08:02:38: <-- 250-servidor.andreu.es Hello aimme.es 
([195.57.139.2]), pleased to meet you
 Wed 2005-06-15 08:02:38: <-- 250-HELP
 Wed 2005-06-15 08:02:38: <-- 250-SIZE
 Wed 2005-06-15 08:02:38: <-- 250 PIPELINING
 Wed 2005-06-15 08:02:38: --> MAIL From:<address@hidden> SIZE=1177
 Wed 2005-06-15 08:02:47: <-- 250 address@hidden Sender OK
 Wed 2005-06-15 08:02:47: --> RCPT To:<address@hidden>
 Wed 2005-06-15 08:02:47: <-- 550 address@hidden No such user
--- End Transcript ---
: Message contains [1] file attachments