Hi. I receive a email from a user telling me that they have issues sending emails to some company.
I have centos 5.11 x64 postfix 2:2.3.3-7.el5. Now, I filter the domain and found this logs: Aug 25 08:23:57 mail postfix/smtp[21291]: warning: no MX host for XYZ.comhas a valid address record Aug 25 08:46:08 mail postfix/smtp[22177]: warning: no MX host for XYZ.com has a valid address record Aug 25 09:19:18 mail postfix/smtp[23290]: warning: no MX host for XYZ.com has a valid address record I have more records. Aug 25 10:18:23 mail postfix/smtp[28000]: warning: no MX host for xyz.com has a valid address record Aug 25 10:18:23 mail postfix/smtp[28000]: 21B5B1B0073: to=<u...@xyz.com>, relay=none, delay=0.05, delays=0.05/0/0/0, dsn=4.4.3, status=deferred (Host or domain name not found. Name service error for name=inbound.registeredsite.com type=A: Host not found, try again) Aug 25 10:26:08 mail postfix/smtp[28578]: warning: no MX host for xyz.com has a valid address record Aug 25 10:26:08 mail postfix/smtp[28786]: warning: no MX host for xyz.com has a valid address record Aug 25 10:26:08 mail postfix/smtp[29046]: warning: no MX host for xyz.com has a valid address record Aug 25 10:26:08 mail postfix/smtp[28786]: 9AD001B0068: to=<u...@xyz.com>, relay=none, delay=3582, delays=3572/0/10/0, dsn=4.4.3, status=deferred (Host or domain name not found. Name service error for name=inbound.registeredsite.com type=A: Host not found, try again) Aug 25 10:26:08 mail postfix/smtp[28578]: 8EBC41B006F: to=<u...@xyz.com>, relay=none, delay=1767, delays=1757/0/10/0, dsn=4.4.3, status=deferred (Host or domain name not found. Name service error for name=inbound.registeredsite.com type=A: Host not found, try again) Aug 25 10:26:08 mail postfix/smtp[29046]: 36E361B0063: to=<u...@xyz.com>, relay=none, delay=7341, delays=7331/0.01/10/0, dsn=4.4.3, status=deferred (Host or domain name not found. Name service error for name=inbound.registeredsite.com type=A: Host not found, try again) Just with that domain, some could help understand the issue? dns? Thanks for your time!!!
