I get an error message everytime I send an email to sbcglobal.net. I can sent it within the network pop3 but not through exchange SBS2003. Has anyone seen this or can help? Thanks You do not have permission to send to this recipient. For assistance, contact your system administrator. <domain.com #5.7.1 smtp;550 5.7.1 <user@domain.com>... Access denied>

Check to see if you are blacklisted: http://www.spamhaus.org/

I checked it there and nope. Hmmm! Thanks, any other ideas?

SBC has pretty aggressive spam filters. Do plain txt messages get through?

I will test that. Thanks

do you have an spf record? i'm not sure if sbc uses them or not, but it will help your mail reach its destinations on many networks that use senderID. http://microsoft.com/senderid