[KLUG Members] sendmail blocking spam with dnsbl?

Bruce Smith members@kalamazoolinux.org
14 Jan 2003 16:04:12 -0500


> Still no luck, nothing noted as being blocked in the /var/log/maillog
> 
> Does it make a difference if this machine is using fetchmail to get the mail from another
> smtp machine?  I.e., the e-mail address being sent to is on another box.  This box I'm
> tweaking uses fetchmail to get the mail from there.

Ah, yeah . . . since all your email is coming from the same box, it's
checking the single IP address of the remote SMTP machine against the
blacklist database.  (which is probably not listed, unless it's sending
out spam - in which case it'll block everything)

The SMTP box that really accepts the email from the internet is the
machine that needs the DNSBL.

If you're getting your email from your ISP, then your own option is to
filter (you can't block).

--------------------------------------------
Bruce Smith                bruce@armintl.com
System Administrator / Network Administrator
Armstrong International, Inc.
Three Rivers, Michigan  49093  USA
http://www.armstrong-intl.com/
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