Not sure how to fix this error message

  • From: "Rob Freeman" <rfreeman@xxxxxxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
  • Date: Mon, 15 Jul 2002 07:24:29 -0500

I get from different mail servers:
 
 
            There was a SMTP communication problem with the recipient's
email server.  Please contact your system administrator.
            < #5.5.0 smtp;550 Relaying is prohibited> 
 
When I check the log file, it says
 
2002-07-15 12:05:14 mail1.transplatinum.com OutboundConnectionCommand
SMTPSVC1 FLEETONE_MAIL - 25 RCPT - TO:<xxxxx@xxxxxxxxx> 0 0 4 0 17375
SMTP - - - -
2002-07-15 12:05:14 mail1.transplatinum.com OutboundConnectionResponse
SMTPSVC1 FLEETONE_MAIL - 25 - - 550+Relaying+is+prohibited 0 0 26 0
17484 SMTP - - - -
2002-07-15 12:05:14 mail1.transplatinum.com OutboundConnectionCommand
SMTPSVC1 FLEETONE_MAIL - 25 RSET - - 0 0 4 0 17484 SMTP - - - -
2002-07-15 12:05:14 mail1.transplatinum.com OutboundConnectionResponse
SMTPSVC1 FLEETONE_MAIL - 25 - - 250+OK+-+Reset 0 0 14 0 17656 SMTP - - -
-
 
Is this being caused on my end or their end?  It happens not with every
email address, but quite a few we send out to.
 
 

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