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Relaying denied. IP name lookup failed [172.16.1.131]

Nuri000 (MIS) (OP)
27 Nov 00 15:41
We have decided to break off the corperate mail server and run our own at our local office.  I decided to run ipop3 on our Slackware box.  Every time I try to send mail from one of our terminals, this message comes up in /var/adm/messages.  How can I get sendmail not to check for authenticity of the IP address?  I'm not that worried about security being on our lan.

NG
jad (Programmer)
29 Nov 00 4:35
umm ... you have the anti-relaying section turned on in your sendmail.cf ... you don't really want to turn this off or you could become available to being a spam site ...

you need to add your new computer ip-addresses into the allowed relayers file ... (your access db) and then it'll send just fine :)

Gibson (MIS)
19 Dec 00 22:15
Go to /etc/mail/ and edit relay-domains to add something like this:
172.16.1.      RELAY

Then, sendmail will relay your mail with no problems. Oh, it's a tab between the IP range and "RELAY."
Hope this helps.
Gibson in Nashville

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