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Recent content by giantcrazy
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Exchange SBS2k3 - unable to send external mail, IP not authorized
Alright, I might be talking to myself, but I figured I'd update since I found the solution. I was missing a reverse-ARP entry on the server. Added one pointing back to the box, and mail finally started delivering for the troubled domains (AOL, gmail).- giantcrazy
- Post #3
- Forum: Microsoft: Exchange
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Exchange SBS2k3 - unable to send external mail, IP not authorized
D'oh - the error message truncated. It was as follows: There was a SMTP communication problem with the recipient's email server. Please contact your system administrator. <---------.com #5.5.0 smtp;550-5.7.1 [(public IP)] The IP you're using to send email is not authorized >- giantcrazy
- Post #2
- Forum: Microsoft: Exchange
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Exchange SBS2k3 - unable to send external mail, IP not authorized
Hi all- Sorry if this question's been covered - I tried searching Technet, the web, the forum, my gym shorts and everything else, but couldn't come up with an answer. I have a version of SBS2k3 that I'm running in a VMWare workstatino as a test. We're a small company (5 employees) that...- giantcrazy
- Thread
- Replies: 2
- Forum: Microsoft: Exchange
