On 28 nov 2006, at 16.41, Steven W. Orr wrote:
Here's the game. I host my own domain on my own machine off the
cable modem. I have maybe 6 accounts of legit users. I'm running
sendmail/spamassassin/spamass-milter to reject spam before it's
accepted. I have a problem with spam coming in that's from
addresses on my own domain that don't exist. Anything coming in to
a nonexistant address is rejected by sendmail, but I need a way to
reject mail that says it's coming from an internal user that
doesn't exist. For example, I have steveo, andy, frank and lisa as
legit accounts. Spam comes in to steveo from [EMAIL PROTECTED] and
I want to reject it because it's coming from an address that
doesn't exist. Sendmail does not support this; i.e., it can only
reject mail *to* an address that doesn't exist.
Is there a way to do this?
SPF is designed to solve precisely this problem:
<http://www.openspf.org/>
j o a r
