Hello, I'm using EFW2 for accepting mails from the Internet for my domain and forwarding them to my internal mailer in the DMZ. For outgoing mail I configured the transparent SMTP-proxy in EFW and forward all mails to the smarthost of my provider. This constellation works fine.
Now the problem: An attacker makes a Brute-Force-Attack to my domain and uses recipients from a dictionary. EFW takes the mail and forwards it to the internal mailer which bounces the mail because of the false recipient. EFW now sends an NDR to the smarthost of my provider. My provider is not amused about that. What can I do to stop sending the NDRs over the smarthost? Can EFW ask the internal mailer if a recipient exists and rejects the mail before EWF accepts it? Disabling the smarthost is no option, since I have a dynamic IP. Greetings Martin -- Der GMX SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen! Ideal für Modem und ISDN: http://www.gmx.net/de/go/smartsurfer ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Efw-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/efw-user
