Fri Aug 23 17:57:09 UTC 2002
Paul Vixie wrote: >>For postfix the dominant cost is not fork/exec but management of the >>queue files. The postfix content filtering scheme involves the mail >>totally leaving the postfix universe (it is effectively "delivered" to >>the content filter), so the queue file is deleted. [...] >> >there is no way under that model to reject the mail before the final-ok >after the DATA/. verb, so that the mail stays with the spammer's mailer >(or the open relay or whatever). there has to be a way to do synchronous >rejection. attempting to bounce spam after accepting that DATA/. verb >is just not worthwhile. > Yep, if you want to bounce at the SMTP level DCC has to be inserted into the smtp server or must interface with it with a protocol like Vernon described.
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