Hi Craig, In /etc/mail/access I had only 127. RELAY So, I added 192.168.0. RELAY charlie.esaravana.com OK (The machine from which I am trying to send my mail) I still get the following error in my netscape client An error occurred while sending mail. The mail server responded: 501 5.1.8 .. Domain of sender address sundar@esaravanana.com exist. Please verify that your email address is correct in your mail preferences and try again. On my mail server log I get the following: Apr 12 10:48:49 snoopy sendmail[1078]: f3CHmnp01078: ruleset=check_mail, arg1=, relay=charlie.esaravana.com [192.168.0.2], reject=501 5.1.8 ... Domain of sender address sundar@esaravana.com does not exist Apr 12 10:48:49 snoopy sendmail[1078]: f3CHmnp01078: from=, size=0, class=0, nrcpts=0, proto=ESMTP, daemon=MTA, relay=charlie.esaravana.com [192.168.0.2] Sundar > Hello, > > I finally managed to configure my mail server at home on my gateway with > sendmail/qpopper. I am able to receive my mail from default > root(root@snoopy) account to any of my other local accounts(e.g > Sundar@eSaravana.com). But when I try to send mail from any of my local > accounts(Sundar@eSaravana.com), I get following error message > > Sending failed: > a SMTP error occurred. > Command: MAIL. > Response: 501 5.1.8 .. Domain of sender address > sundar@esaravana.com exist. > > > My local DNS server runs on another machine and the domain is > --esaravana.com > > And my sendmail configuration is as follows > snoopy:~ # sendmail -d0.1 > Version 8.11.2 > Compiled with: LDAPMAP MAP_REGEX LOG MATCHGECOS MIME7TO8 MIME8TO7 > NAMED_BIND NETINET NETINET6 NETUNIX NEWDB NIS > NISPLUS QUEUE > SCANF SMTP TCPWRAPPERS USERDB > > ============ SYSTEM IDENTITY (after readcf) ============ > (short domain name) $w = snoopy > (canonical domain name) $j = snoopy.esaravana.com > (subdomain name) $m = esaravana.com > (node name) $k = snoopy > ======================================================== > > Recipient names must be specified > > > Help! > > Sundar > ----- You need to allow 'relay' - typically sendmail would store this in /etc/mail/access and an entry would be like... 192.168.1. RELAY to allow users on the local subnet of 192.168.1.0/24 to relay mail. This presupposes that you have a hash or db/dbm directive in your sendmail configuration that check for this. Check out Craig _______________________________________________________ Send a cool gift with your E-Card http://www.bluemountain.com/giftcenter/