Neil Bothwick wrote:
There is, redirecting port 25 traffic. I discovered an ISP was doing this by accident, when I switched to my backup ISP and forgot to change my mail settings. It was only later that I realised mail was still going out, despite my software being set to use a different ISP's server. So I sent myself a mail and checked the headers, they were redirecting all outgoing port 25 traffic to their own server.
Hmmm that's not a bad plan, but I could some cases whee that might cause some issues. However overall it's probably better solution than just blocking port 25 access to anything, but your own servers.
However back in '99 talking your dialup proviiders into tossing CPU eating ACL's onto their gear was hard enough let alone doing something complicated like hijacking smtp. I think even today it's hard to implement something like that unless you own most of the gear involved which isn't always the case.
kashani -- gentoo-user@gentoo.org mailing list
