On Wed, 16 Feb 2011 22:36:31 +0800 sunhux G <sun...@gmail.com> articulated:
> Just set up postfix & it's running on my RHES 4.2 box. > > Immediately after postfix is up, I test sending emails from a > permitted domain > (ahhh, on this postfix server's domain firewall, we even have a > firewall rule > which permits Tcp25 from those few sending domains' SMTP servers) > using an email client to > sender_id@[IP_address_of_the_postfix_server] & the /var/log/maillog > on the postfix server indicated the email arrives at the postfix > server (with some errors though) : > > # grep recipient_id /var/log/maillog* > maillog:Feb 15 11:41:52 hostname postfix/smtpd[6891]: NOQUEUE: > reject: RCPT from gate1.mds.com.sg[203.126.130.157]: 554 5.7.1 > <recipient_id@[202.6.163.31]>: > Relay access denied; from=<prvs=020cae8c4=recipient...@mds.com.sg> > to=<recipient_id@[202.6.163.31]> proto=ESMTP helo=<gate1.mds.com.sg> > maillog:Feb 15 13:43:20 hostname sendmail[7688]: NOQUEUE: > SYSERR(recipient_id): can not chdir(/var/spool/mqueue/): Permission > denied > > Then I installed dovecot rpm on my RHES box : uninstall it as it's an > old version & > reinstall with a newer version & start up dovecot as well. > > I did not test sending to sender_id@domain_name at that time because > the domain I purchased from a domain provider/registrar has yet to be > registered in our ISP's DNS. Subsequently I registered the following > A, MX & NS records with our ISP : > > A: myportaltech.com. IN A 202.6.163.31 > A: smtp.myportaltech.com. IN A 202.6.163.31 > > PTR: 31.163.6.202.in-addr.arpa. IN PTR smtp.myportaltech.com. > > MX: myportaltech.com. IN MX 10 smtp.myportaltech.com. > > NS: myportaltech.com. IN NS ns1.businessexprezz.com. > NS: myportaltech.com. IN NS ns2.businessexprezz.com. > > The above myportaltech is just a fictitious name of my domain but I > can provide the actual domain name if needed. > > After the above records have been propagated to all other DNSes, I > test sending email from the same permitted domain, this time using > domain name & the email never arrives & I did not receive a 'bounced > mail' notification too. Then I test sending from the same domain to > recipient_id@[202.6.163.31] & this time round, the test email never > show up in /var/log/maillog* anymore. > > The network/security guys confirmed that the firewall logs did not > show any denied SMTP records. > > So how do I go about troubleshooting this? > > Is this a DNS record entries issue, firewall/network issue, related to > dovecot or something within my postfix server? When posting, could you please use plain text as opposed to HTML. I know that GMail has that option. You might start by reading the info located at: http://www.postfix.com/DEBUG_README.html Supply at least the output of "postconf -n", or better yet provide output from the postfinger tool. This can be found at http://ftp.wl0.org/SOURCES/postfinger. Pertinent log entries are also appreciated. -- Jerry ✌ postfix-u...@seibercom.net _____________________________________________________________________ TO REPORT A PROBLEM see http://www.postfix.org/DEBUG_README.html#mail TO (UN)SUBSCRIBE see http://www.postfix.org/lists.html
