When you tested with telnet, did you use both the same 'Mail from' AND 'Rcpt
to'? I don't know the definition of 5.5.0 off the top of my head but 'user
unknown' sounds like a recipient problem at first.
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Sent from my BlackBerry Wireless Handheld
- Origin
:32 PM
To: MS-Exchange Admin Issues
Subject: Re: Problem sending email to a specific domain
When you tested with telnet, did you use both the same 'Mail from' AND 'Rcpt
to'? I don't know the definition of 5.5.0 off the top of my head but 'user
unknown' sound
EMAIL PROTECTED]
Sent: April 28, 2008 6:32 PM
To: MS-Exchange Admin Issues
Subject: Re: Problem sending email to a specific domain
When you tested with telnet, did you use both the same 'Mail from' AND 'Rcpt
to'? I don't know the definition of 5.5.0 off the top of my h