is invalid or DNS says does not exist
- From: "Scott" <s@xxxxxxxxxxx>
- Date: Wed, 12 Sep 2007 12:16:20 +0100
There was a SMTP communication problem with the recipient's
email server. Please contact your system administrator.
<server.DOMAIN.COM #5.5.0 smtp;501 <DOMAIN.co.uk> is invalid or
DNS says does not exist>
All external email address sent from OUTLOOK to internal EXHANGE are getting
rejected with the above error.
I added my ISP DNS IP to anti spam look up ... wondering they are blocking
because of too many lookups.
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