Thus spake Alessandro Vesely on Sun, May 16, 2004 at 05:31:35AM CDT
> Lindsay Haisley wrote:
> > The issue boils down to the fact that SMCs ('stupid mail clients') are far
> > more likely to need an exemption from content filtering than are remote
> > servers.
>
> To be honest to MUAs, we should note that to properly handle 4xx
> responses one needs to manage a queue, which in general is not
> their job (although trying once more would suffice in this case.)
All SMCs are MUAs. Some MUAs are also SMCs ;-)
> > Connections using authenticated SMTP are also likely to be SMCs and thus
> > require such an exemption.
>
> So the equation RELAYCLIENT = MUA still holds.
No question about this. If courier is going to implement a content
filtering exemption for RELAYCLIENT hosts, my point is that it should do
likewise for MUAs connecting through authenticated SMTP.
> > but what with the rise of various anti-spam
> > technologies such as SPF I would expect that there would be an increase in
> > the use of authenticated SMTP.
>
> Yes, large ISPs are better off if they stop relaying for _local_
> addresses w/o auth. Fastweb, for one, is a large Italian ISP who did so.
> Those who don't will get on spamhaus or MAPS every now and then, I suppose.
I've been out of the ISP business for years, working only as an occasional
consultant for a regional ISP in Texas, but I do know that any ISP with a
substantial number of non-techie customers that started requiring auth SMTP
and stopped relaying for local clients had better have all their tech
support folks on notice to work overtime for at least a couple of weeks!
It's a funny thing about email. People think of the Web when they think of
the Internet, and if their web service goes south, they get pretty unhappy,
but if their email quits working, they come after you with a rope <grin>.
--
Lindsay Haisley | "Everything works | PGP public key
FMP Computer Services | if you let it" | available at
512-259-1190 | (The Roadie) | <http://www.fmp.com/pubkeys>
http://www.fmp.com | |
-------------------------------------------------------
This SF.Net email is sponsored by: SourceForge.net Broadband
Sign-up now for SourceForge Broadband and get the fastest
6.0/768 connection for only $19.95/mo for the first 3 months!
http://ads.osdn.com/?ad_id=2562&alloc_id=6184&op=click
_______________________________________________
courier-users mailing list
[EMAIL PROTECTED]
Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
