My bad. I had fat-fingered the MX record in DNS, so it was sending to MX3 instead of MX2. MX3 is a ms-smtp outbound-only box. All straightened out now. Thanks Len.=20
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Len Conrad Sent: Friday, February 04, 2005 4:49 PM To: IMGate@mgw2.MEIway.com Subject: [IMGate] Re: Problem adding domain >550 5.7.1 Unable to relay for [EMAIL PROTECTED] That's not a postfix error msg, postfix isn't doing the reject. check your .map files with postmap -q "string" hash:/etc/postfix/file.map Len