[Mimedefang] ClamAV's Worm/Trojan/Joke/W97M classifications

James Ebright jebright at esisnet.com
Thu Jun 30 09:26:52 EDT 2005


On Wed, 29 Jun 2005 16:00:24 -0500, Les Mikesell wrote

> If the thing sending is a standards-conforming MTA, your refusal
> obligates it to construct a bounce back to what it thinks is the
> sender.  In the case of viruses, this will always be incorrect so
> you are likely swamping some innocent party's mailbox with bounces.

Umm.. NO

my 5XX refusal to accept the message is to the SENDING MTA, whatever the
sending MTA does with it is NOT my problem. If it is a zombie it probably
ignores it thus you get the same exact effect as discarding it while still
returning the CORRECT return code (IMHO). If it is a valid MTA that the
message was relayed through your reject will most likely end up in the
"postmasters" inbox as the "sender" email address is almost certainly
forged... this has the effect of making the administrators of the relaying MTA
aware that they have an issue. 

Jim

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