On Fri, 3 Jan 2003 16:57:26 -0500, "Keith T. Morgan" <[EMAIL PROTECTED]> wrote:
[snip] > >On Fri, 3 Jan 2003 [EMAIL PROTECTED] wrote: > >> I'm running sendmail 8.11 on a Solaris server. The server has a single >> interface and sits in my DMZ. I'm trying to find a way to block >> inbound mail with my domain spoofed as the sender. [snip] Are you using the FEATURE(relay_local_from) in Sendmail? This feature allows relaying if the message claims to originate at your domain. Since forging this address is trivial, this is probably a bad idea. But I'm no Sendmail expert. My best advice would be to switch to Postfix, which is orders of magnitude easier to configure.
