postfix/qmgr[1512]: , postfix/smtp[1484906]

[armughan]

I had deployed three Proxmox server in HA environment. Master node is sending emails me often but in 3rd node i see these errors.
Jan 30 17:10:39 PVE7 postfix/qmgr[1512]: 116D7100EE1: from=<root@pve5.local>, size=1101, nrcpt=1 (queue active)
Jan 30 17:10:40 pve8 postfix/qmgr[1512]: 13FCB100EE2: from=<root@pve5.local>, size=1090, nrcpt=1 (queue active)
Jan 30 17:10:40 PVE9 postfix/smtp[1484906]: 116D7100EE1: to=<armughan@noeticworld.com>, relay=none, delay=256626, delays=256626/0.03/0/0, dsn=4.4.3, status=deferred (Host or domain name not found. Name service error for name=noeticworld.com type=MX: Host not found, try again)
Jan 30 17:10:40 pve5 postfix/smtp[1484907]: 13FCB100EE2: to=<armughan@noeticworld.com>, relay=none, delay=256626, delays=256626/0.03/0/0, dsn=4.4.3, status=deferred (Host or domain name not found. Name service error for name=noeticworld.com type=MX: Host not found, try again)

DNS = 8.8.8.8
Network settings are same in all machines. could any one help me to fix this issue. syslog is having log after every 2 hours.

 

[Stoiko Ivanov]

try debugging the DNS-settings on the host - install ldnsutils and run:

drill mx noeticworld.com
drill mx noeticworld.com @8.8.8.8

on the node
I hope this helps