Date: Sun, 20 Jul 1997 18:57:27 -0500 From: dkelly@HiWAAY.net To: questions@freebsd.org Subject: Sendmail and mail hub Message-ID: <199707202357.SAA24276@nexgen.hiwaay.net>
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I'm using a dialup PPP connection and dynamic IP address for my FreeBSD system. Have been running sendmail "stock" with the /etc/sendmail.cf for quite a while now with moderate success. Sendmail makes direct connections with remote sites and delivers the mail. Finally many sites are clamping down their sendmails to ward off spam. This bites me as my machine thinks its 10.1.0.1 and ID's as such. And with an unresolvable address like that many sites refuse mail from me. However at this moment I'm also tnt1-47.HiWAAY.net. If sendmail knew to use that net name then I think my problem will be solved. The other option is to forward all outgoing mail to my ISP at mail.hiwaay.net and let them handle delivery. Studying the bat book, http://www.sendmail.org, the docs in /usr/src/usr.sbin/sendmail, FreeBSD FAQ and handbook, etc., my head is spinning. So I've started hacking on /etc/sendmail.cf just to see what kind of trouble I can get into (I'm the only user of this system, so I can only hurt myself, right?). This looked interesting in /etc/sendmail.cf: # "Smart" relay host (may be null) DS So I changed it to: # "Smart" relay host (may be null) #DS DSmail.hiwaay.net Elsewhere I did the same thing for: # who I masquerade as (null for no masquerading) (see also $=M) DMmail.hiwaay.net And now it appears to do exactly what I wanted. Fly.hiwaay.net (a.k.a. mail.hiwaay.net) relays my outgoing mail. It appears to leave local mail alone. But the modem flashes on send, apparently a DNS lookup (which will fail for nexgen.hiwaay.net). So that's the background. The Real Question(s) are: 1) Is "Smart" relay host the Right Way to handle my problem? Have I done something that will bite me later? 2) How should I name my FreeBSD box which is not a full time system in the hiwaay.net domain? -- David Kelly N4HHE, dkelly@hiwaay.net ===================================================================== The human mind ordinarily operates at only ten percent of its capacity -- the rest is overhead for the operating system.
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