RE: ISP outbound SMTP filtering
"Scott Weeks" <[email protected]>
| Newsgroups | gmane.org.operators.internet-access |
|---|---|
| Message-ID | <[email protected]> |
--- [email protected] wrote: From: "Blake Pfankuch" <[email protected]> > I have found only one legitimate use of a mail server on > a DHCP assigned address, so far, and I suspect there're > very, very few folks doing that. So, block outbound 25 > on DHCP ranges. : Most higher end spam filtering services already flag dhcp : ranges as more likely to be spam. When I first started : running my own mail server, it was a static in an area : according to the ip whois of a dhcp range. I couldn't : send to anyone on rr.com or numberous other domains until : they fixed that. A filter looking for legitimate port 25 connections would've found you, though. First set up the filter/*nix program to look for "legitimate" email servers, then block on dynamic ranges and then move on from there. scott _______________________________________________ "Eat sushi frequently". - Avi [email protected] is the human contact address. [email protected] is the list posting address. See below URL for subscribe/unsubscribe and list options: http://inet-access.net/mailman/listinfo/list