kevin lyda wrote:
>On Wed, Mar 03, 2004 at 12:02:10PM +0000, Philip Reynolds wrote:
>>>>Consider an ever increasing volume of mail from time X to time Y.
>>Under normal circumstances, Postfix simply accepts the mail and
>>stores it in the queue. Processing is done *AFTER* postfix has
>>safely accepted the mail, written to disk and the remote client has
>>safely disconnected. This is the most common way it is done, because
>>it is the proper way to do it. Postfix doesn't take up much CPU
>>time, simply accepting a message, so even if it has trouble scanning
>>all messages, they are accepted and acknowledged as being accepted
>>to the remote server.
>>>>>>no, i don't agree with this. "the proper way to do it" feh. every mta
>has begun putting in some checks at receive time. sendmail can do dnsrbl,
>message size and valid hostname checks pretty much out of the box -
>and has been able to do so for years.
>>Well actually Postfix can be configured to do a shitload of checks
before accepting the message,
including but not limited to RBLs, non existent domains etc...
>i would argue that the main problem with sa (and its cousins) is that
>it has been deployed post message acceptance. conceptually rejecting a
>message due to message content is no different then rejecting it due to
>message size - and yet you argue that they should be done at different
>Well only after a mail has passed Postfix's checks will it be passed to
other checking tools.
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