I followed the thread, there was a lot of information in this thread, but now I'm confused as to WHICH method to actually do. I use a dynamic IP as my cable provider won't give out a static one. My friend does my DNS, and luckily the cablespeed people don't change my IP very much -- every few months if that. 66.235.35.127 is my IP for daevid.com [root@daevid mail]# host -a 66.235.35.127 Trying "127.35.235.66.in-addr.arpa" ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 37840 ;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;127.35.235.66.in-addr.arpa. IN PTR ;; ANSWER SECTION: 127.35.235.66.in-addr.arpa. 3600 IN PTR c66-235-35-127.sea2.cablespeed.com. So... What do I need to put where for my RedHat 8 sendmail configuration to circumvent this annoying problem with lists, AOL, sourceforge, etc... > -----Original Message----- > From: redhat-list-admin@xxxxxxxxxx > [mailto:redhat-list-admin@xxxxxxxxxx] On Behalf Of Paul Gillen > Sent: Saturday, November 15, 2003 8:03 PM > To: redhat-list@xxxxxxxxxx > Cc: paul_gillen@xxxxxxxxxxxxx > Subject: Re: Mail error: reason: 550 5.0.0 You must use a > valid mail server > > > > I do not have that problem, but ... What do you > > mean by "smart host?" Are you > > > saying to use one's isp for outbound smtp? > > Yes. > > As originator of this thread, a slight clarification. > > You will in effect use your ISP's SMTP for outbound > SMTP, but the SMART_HOST part is adding an element to > your sendmail config that tells your local SMTP to > relay to your ISP's SMTP for delivery. This, as > opposed to reconfiguring your clients to point to your > ISP. > > Not only is this more elegant, but should you change > your ISP you only have one thing to change. Also this > is superior to the proposed solution of over-riding > for RedHat.com specifically as it will solve the > problem for any similarly configured recipient site. > > This seems to have solved my problem. (Now if I could > only back out all the other stupid things I did trying > to fix it.) > > Follow the thread for details. > =Paul= > > __________________________________ > Do you Yahoo!? > Protect your identity with Yahoo! Mail AddressGuard > http://antispam.yahoo.com/whatsnewfree > > > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
