-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Justin Scott wrote:
We, being somewhat intelligent, have a support process in place to walk the customer through the SMTP port change from 25 to one of our two alternate ports.
Why don't you set the alternate ports up as the defaults when the customer signs up? There are so many ISPs, WAPs, cell carriers, etc that are blocking egress port 25 (ie outgoing from their network) already. The prudent thing to do, for you and your customers, would be to assume every customer will, at some point, have access to port 25 blocked. We use TLS on port 587 and SSL on 465, most mail clients default to these ports when you click the "TLS" or "SSL" box. Bonus-- we tell our clients that "we only support encrypted access to their mail". They understand.
In any case, I don't believe a blanket block of 25 is the answer.
If the question is "how can we stop consumer bot armies from sending spam" it is a pretty good, albeit incomplete, answer. ... alec - -- `____________ / Alec Berry \______________________________ | Senior Partner and Director of Technology \ | PGP/GPG key 0xE8E9030F | | http://alec.restontech.com/#PGP | |-------------------------------------------| | RestonTech, Ltd. | | http://www.restontech.com/ | | Phone: (703) 234-2914 | \___________________________________________/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFIvrYTREO1P+jpAw8RApsOAJ9YTMfMfb4X4PDVaABd+jeLiU/3IgCeKLQW 7rczuS4j56owjGJ88RQbV4I= =le+L -----END PGP SIGNATURE-----