Hi, [snip]> I want to avoid sending unnecessary bounces (specially because I'm the > postmaster for a domain that has about 1300 users and lots of virii > bounces dailly , which are almost driving me mad, so I want to avoid > unnecessary pain to other domain admins) ... > Should I just reject messages containing the damned extensions (scr,com,pif,bat) [/snip] is one possibility, but in this case, don't forget the simplest things: a) exe- and com-files b) files within a zipped or tarred archive [snip] >The second option leaves the risk of someone sending a valid pif or bat file that has "format c: /X /Q" , "deltree c: /y" or something like that , but [/snip] If you have a good antivirus-kit, it will recognize the virus, nevermind the options...there has still prevention-work to be done for end-users, being secure about the source of the sender and what hes sending. Usually, you can config not to send bounce-messages. There are advantages and disadvantages of this: bouncing: + lesser traffic + not filling up mailbox - sender doesn't know and floods others mailboxes with virus + sender knows about his virus and can fight against - can cause immense traffic > Right now my server is a standard redhat 9 at work and a FC1 at home , > both using sendmail... How can I do this? Think about using amavis. Infos can be found at http://www.amavis.org . Make sure your antivirus-kit is supported. > (hints for qmail and postfix are welcome also , as we're thinking about > switching from sendmail to qmail or postfix) Amavis works with sendmail, postfix and many more. In the new version, you also can handle spam with... HTH Roger > Pedro Macedo
