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On Wed, 20 Oct 1999, Mark Donnelly wrote: > > > >>> RCPT To:<dkatz at dhcp-250-11.kenan.com> > > 550 <dkatz at dhcp-250-11.kenan.com>... Relaying denied > > Do you notice a difference here? What's going on is that somehow cam-katz > is getting translated into dhcp-250-11.kenan.com. Assumedly, cam-katz > doesn't know about the dhcp* name, so it's rejecting the mail, on the > reasoning that someone is trying to use it to send mail to another machine > (also known as relaying, a favored technique of spammers). > > This is both a configuration problem (due to DNS issues, or not listing > all the recognized names in the proper /etc/mail/* file under RedHat), and > a security problem (trying to stop the spam). > > To fix it, I'd suggest either getting bishop to recognize cam-katz as > such, or add dhcp-250-11.kenan.com to the appropriate /etc/mail/* file. I > think that there might be another option - configuring it to accept mail > for all of kenan.com - but that might not be what you want. > > > dkatz at cam-katz... User unknown > > I'm guessing this is the friendly error message from /bin/mail that > corresponds to a 550 SMTP error code. Yep, I agree 100%. The file to add the name to is /etc/sendmail.cw on RedHat, at least on 6.0 -- I can't say if it's the same on all versions... ******************************* | Derek D. Martin | | UNIX System Administrator | | derek.martin at ne.arris-i.com | ******************************* - Subcription/unsubscription/info requests: send e-mail with "subscribe", "unsubscribe", or "info" on the first line of the message body to discuss-request at blu.org (Subject line is ignored).
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