Please excuse my ignorance. I love Linux but am a perpetual newbie, non-programmer type.
My question now is this? Is this my problem or my hosting company's problem? I use sendmail--redhat 7.3's version, which is supposed to disallow open relying by default--but a hosting company serves my mail. Or at least I believe this is how it works. If it's my fault, I will certainly install qmail. Again, help is much appreciated. On (10/10/02 12:44), Gary wrote: > On Thu, Oct 10, 2002 at 10:00:53AM -0700 or thereabouts, Daniel Goldin wrote: > > I recently discovered that earthlink has been blocking emails from my > > computer due to third party relay vulnerability. They sent me a long > > automated email urging me to contact my systems administrator. The > > last thing I want to be is a vehicle for spam, but I am my own > > Part of the responsibility of being an administrator is knowing about > these things, mail relays, etc... this is fundamental. I also would > suggest using qmail, or even Postfix, as they, out of the box, do not > allow relaying at all. One does not need to know anything about > programming to understand the concepts of mail relaying or protecting your > system. > > One other thing to check, if you run a web server, is to check in your CGI > directory if you have a formmail CGI. If you do, get rid of it. The > older versions of this is exploitable and spammers use this to relay mail > instead of using your MTA. > > -- Daniel Goldin 323.225.1926 [EMAIL PROTECTED] -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe https://listman.redhat.com/mailman/listinfo/redhat-list
