[Mimedefang] New way of obfuscating text
David F. Skoll
dfs at roaringpenguin.com
Tue Feb 10 20:00:07 EST 2004
On Tue, 10 Feb 2004, Kris Deugau wrote:
> You're free to return something other than "250 OK" after a DATA
> segement.
> However, it *is* a bit pointless because you've burned bandwidth to
> accept the message by then. :/
Not at all. There are very good reasons to return 5xx after the DATA.
If by some miracle, you accidentally reject valid mail, at least the sender
receives a non-delivery notification. On the other hand, if it really
*was* spam, at least you're not responsible for generating a bounce.
You're being a good Internet citizen by triggering a NDN, but you're being
a cautious Internet citizen by forcing someone else to generate the NDN.
Regards,
David.
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