+1 Also: Spamhaus and other DNSBL's provide explanations as to why your IP is listed. That would also be helpful to know - not just that you are listed, but why. This information, and the headers especially, will greatly aid your troubleshooting.
On Wed, Jul 30, 2008 at 11:03 AM, Jason Gurtz <[EMAIL PROTECTED]> wrote: >> I'm moving this over from the NT Admin forum since it seems to be >> purely an Exchange issue. I'm still looking for guidance on why and >> what my DC is trying to send out port 25. > > *sigh* > > You need to get example emails with complete headers from the people that > are listing you (Spamhaus etc...) in order to figure out what the problem > is. W/o this info we are all simply probing about in the dark. Had you > posted this data, your question would likely already be answered or at the > very least a very directed set of remediation steps could be given. Maybe > you AV system is "helpfully" notifying all senders that they are sending > viruses? Could be literally dozens of things.... > > Look at the "Received:" header lines to figure out what machines mail is > touching. BTW, look at the headers of incoming mail to figure out the > flow of inbound mail. Google for how to read email headers. There are > several easy to understand guides out there. > > You would do well to spend the time to figure out and document (Visio is > great!) your email infrastructure as troubleshooting will become much > easier. > > ~JasonG > > -- > > ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ > ~ http://www.sunbeltsoftware.com/Ninja ~ -- ME2 ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~
