Date: Thu, 15 Jan 1998 00:10:01 -0600 (CST) From: Font <font@Mcs.Net> To: questions@FreeBSD.ORG Subject: MAIL FROM: address check commented out in /etc/mail additions? Message-ID: <Pine.BSF.3.95.980115000327.11673A-100000@Jupiter.Mcs.Net>
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Playing around with some antispam/antirelay mechanisms on my new mail server, I added in the rulesets from /etc/mail/sendmail.cf.additions as well as the check_rcpt from http://www.sendmail.org/antispam.html, but found that non-resolving MAIL FROM: domains weren't being rejected. Upon closer examination I found that a line in sendmail.cf.additions had been commented out: # R<?> $* < @ $+ > $#error $: "451 Domain does not resolve" I was just curious as to whether this was intentional (what are the disadvantages here? can some legit mail be rejected?) or just overlooked. I also noticed that these rules were slightly different from the ones on the sendmail site, but I don't know enough about rulesets yet to be able to question anything. :-) I took out the comment and things seem to be working as expected. A bug in my MUA causes news.announce.newusers font to be sent to beneficiaries and senders of UCE/SPAM. @ mcs.net Wishes are like dishes.
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