SPAM (on list) was:Re: classiccmp list (sort of) help requested

[Brad Parker]

der Mouse wrote:
>> But moreover, believe it or not I've found a fair number of servers
>> that take the temporary rejection as a permanent one and never try
>> again.  Customers won't accept this.
>
>Customers have no choice.  Greylisting is not the only thing that can
>produce a temporary rejection...unless you're running a very
>exceptional MTA!

Yes - i find it hard to believe that an smtp mta would not 'store and
forward'.  At the very least it it would be non-compliant with RFC's and
worse it would be quickly deamed "very broken".

people have multiple mx's for a reason - servers go down.

>> Yes, I know it's easy to say in an ivory tower mentality "well,
>> that's their fault", but in a business setting we don't have the
>> luxury of the ivory tower.

I understand, and agree, but at some point (about now) the volume of spam
gets to be 100x the volume email and something has to be done.

I just turned on greylisting (two different versions, one for each mx)
on a domain and the volume of spam went down 90%.  I am willing to pay a
1 hour tax for that relief.  The time I was wasting was costing me
money.  Plus, I whitelist domains I do business with.

(at some point it becomes an economic issue where the lost time and
messages ends up costing you money.  not very ivory tower to me.)

-brad