On Fri, Feb 14, 2003 at 12:13:59PM -0200, Joćo Borsoi Soares wrote: > I want to use an anti-spam feature in my sendmail. I tried: > > FEATURE(dnsbl,`relays.osirusoft.com')dnl > > and it works fine. The problem is that one of my clients are in the > blackhole list, but he is not a spammer. Actually it is a problem with > his ISP. He uses dynamic IP. I wonder if there is some how to relay my > client based on his e-mail address, not considering the anti-spam > feature only for him. I already have his email at /etc/mail/access, and > he still get blocked.
Welcome to the trade-offs between blocking spam and blocking legitimate customers who got on the blackhole lists. At my company, we had a very good look at the blackhole list sites and did some experimentation to determine which we could use, given that we didn't want to block our customers from access. This is the list we now use: FEATURE(`dnsbl', `relays.visi.com')dnl FEATURE(`dnsbl', `sbl.spamhaus.org')dnl We did find that some of the black hole list sites accept requests from just about anybody to have a site added - not good. Red Hat got one of their corporate mailers on the list but nothing would have prevented your or me from adding Microsoft or anybody else we wanted to piss off. In any case, you should be prepared to tell your customers how to get them off the list. Each black hole site typically has instructions on how to do this. -- Ed Wilts, Mounds View, MN, USA mailto:[EMAIL PROTECTED] Member #1, Red Hat Community Ambassador Program -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe https://listman.redhat.com/mailman/listinfo/redhat-list
