On 8 Jul 1997, Firebeard wrote:
But it could - it's simple firewall technology. There's no MX record for sten.tivoli.com, but any incoming email to me is intercepted by proxy.tivoli.com, as is all other incoming traffic to the internal tivoli.com network on port 25. Since 'incoming' is only a matter of definition, it would be trivial for an ISP to set up a firewall that passed all other ports through transparently, but redirected connections with a destination of port 25 to their own SMTP server.
Very much depends on how `ISP' is defined. All my mail now comes in via UUCP, which is another port (540, I think). Outgoing mail goes to another system which is run from a friend's house, and therefore probably doesn't count as an ISP (again, UUCP).
I don't want them to, and I _certainly_ don't want the government goons requiring ISPs to do this, but don't sit back and relax with the notion that 'it can't be done'.
It certainly _can_ be done. Almost anything _can_ be done. Whether it should (and in this case, it shouldn't!) be done is another issue. dave -- David E. Smith, P O Box 324, Cape Girardeau MO 63702 (573)334-0950 dave@[clas.net | linuxware.com | ml.org] 1000s of Magic:The Gathering cards 4 sale! Info on req. Keywords: CPSR EFF ACLU DS6724 Delphi SF bureau42 Wicca HWG Dilbert crypto Millennium Linux YDKJ PGP single! ;)