On Wed, 18 Jun 1997, Brian Horvitz wrote:
Can someone give me a clue on filtering mail on using the stock sendmail that comes with Solaris? I am unfortunately without a sysadmin right now (anyone need a job?) but I do know enough to monkey with what needs monkeying. Anyway, a certain user decided to dial up (to somewhere else) and use my mail system to send mail to every single AOL user. Today
First upgrade to sendmail 8.8.5 (or try 8.8.6) and then take a look at: http://www.informatik.uni-kiel.de/%7Eca/email/english.html
alone I probably got about 600 copies of his bounced mail...never mind that this is deffinately not cool. Anyway, I have the email address that he is using as for the FROM: field so I'd like to simply block that out. Help would be appreciated.
You also need to prevent people from using your server as a relay. If you don't, you are doomed. Bill