RE: FW: (REPOST) Sendmail 8.11 configuration/security issue

<snip>
> Sure. You could write a sendmail ruleset to prevent this too

Which is exactly what I think the original poster needed.

<snip>
> I'm coming from the school that says unsigned (and/or

I agree 100%. Unfortunately... while this is correct, it is out of touch with the real world as business directives occur daily all over the place with no digital signatures in email. Additionally, depending on the importance/weight of the directive, even after educating users, you can bet they'll continue to use plaintext unsigned email for most business communications.

Yes, awareness is good and will help... but I think we're digressing. Our original poster wanted to know how to block the spoofed emails coming in on his mail servers. I haven't seen a specific sendmail feature for this. You make reference that it can be done and I agree. Do you have a URL handy for the benefit of the original poster?

<snip> Received on Tue Jan 21 17:11:35 2003