-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Thursday, March 20, 2003, Johannes Posel wrote...
>> Right... but it's not DSL... and what happens with addresses that >> don't reverse? The spam filters would be useless. > MTA-issued error "451 Temporary lookup failure, try again later". I know,... I do that myself... I had assumed that this was client-side filtering, I'd missed your little MTA line on the original post ;) >> No... but you can insert extra header lines... and that was what I >> was talking about... What part does the filter pick up on, the >> first line to report a receive, or the last one. > The "filter" is at the TCP/IP level, before any kind of header or > body hits the line. The header or body is basically unrelated. This can be disregarded as I thought we were talking client side ;) > Blocking open relays is the birth of all those RBLs. Plus, BTW, an > MTA can do sender verification "callout", meaning before accepting a > RCPT, it opens a connection to the MX of the supplied MAIL > From:<address> to see if this address exists and can accept mail. I do all that plus more, although my RBL checks have to be accepted, and mail tagged and bounced to me instead of staff... we have one or two customers that won't fix their services, or their providers won't. :) - -- Jonathan Angliss ([EMAIL PROTECTED]) -----BEGIN PGP SIGNATURE----- iQA/AwUBPnpUMCuD6BT4/R9zEQIDjACgyoQfik72Md3EyyahxVDp0lq8024An268 jPD7gyv5XL8OhvnsEqM5ZTHh =jS5e -----END PGP SIGNATURE----- ________________________________________________ Current version is 1.62 | "Using TBUDL" information: http://www.silverstones.com/thebat/TBUDLInfo.html
