On 18 May 2002, at 13:49, Alan J. Flavell wrote:
> On Fri, 17 May 2002, David Woodhouse wrote:
> http://www.monkeys.com/anti-spam/filtering/additions.html
> In any case, there are plenty of domains that say OK at RCPT TO: time
> to even the most preposterous addresses, and only repudiate them
> later: waste of effort to list those in callbacks.
There is a problem in this behaviour:
there are 2 cases when this check is impossible.
1. If the main MX exchanger has a loose connection and you hit
most of the time a secondary MX, in this case it would accept ANY
message, since it does not have the user databasa
2. you could hit one server that accept ony message, trying to
deliver by partial match or trying to get hints form body.
in this case what woud you do ?
Leonardo Boselli
nucleo informatico e telematico
Dipartimento Ingegneria Civile
Universita` di Firenze
V. S. Marta 3 - I-50139 Firenze
tel +39()0554796431
cel +39 3488605348
fax +39()055495333
http://www.dicea.unifi.it/~leo
