[Mimedefang] Powerful anti-spam rule :-)

[Dirk Mueller]

> => This will also not work with big companies which have a 2-level
> SMTP service :
> Internet mail-gateway --- Intranet mail-relay
> 			  (managing @company.com)
> 
> The Internet mail-gateway usually does only relayingi/antispam and 
> does not manage @company.com addresses (and therefore only return
> "250 recipient ok" too).

... unless they already know about the email address to be the cause of a 
forged spam source and block it at their mail gateway. 


-- 
Dirk (received 213 mails today)