D&C GLug - Home Page

[ Date Index ] [ Thread Index ] [ <= Previous by date / thread ] [ Next by date / thread => ]

Re: [LUG] email

 

Mick Vaites wrote:
> The only other thing would be that the catchall points at a bit bin -
> :BLACKHOLE: in exim speak. So email not addressed to a real email address is
> just dropped.
> 
> That way a dictionary attack doesn't cause unnecessary 'not at this address'
> bounces.

It's generally considered that the "proper" thing to do is for the
recieving MTA to reject the message as soon as it sees an undeliverable
address in the RCPT command.  That way you have to neither bounce nor
accept the message and subsequently drop it, possibly confusing people
who have mistyped an address, because your MTA never accepts it in the
first place.

It's not really desirable that an MTA should accept a message and claim
to be able to deliver it, then subsequently bounce it or drop it on the
floor.

James

-- 
The Mailing List for the Devon & Cornwall LUG
http://mailman.dclug.org.uk/listinfo/list
FAQ: http://www.dcglug.org.uk/linux_adm/list-faq.html