Hi,
I'm running NAV 5.3 and have issue with alertengine and email notifications. Email seems to remain stuck in the queue until I force a reboot of the VM.
The error message I see in /var/log/nav/alertengine.log is:
2022-03-08 08:35:10,707 [WARNING] [nav.alertengine.alertaddress.send] Not sending alert 5824 ****** as handler Email is blacklisted: [Errno 110] Connection timed out
2022-03-08 08:35:10,716 [WARNING] [nav.alertengine.alertaddress.send] Not sending alert 5825 to ****** as handler Email is blacklisted: [Errno 110] Connection timed out
2022-03-08 08:35:10,720 [INFO] [nav.alertengine.check_alerts] 0 new alert(s), sent 0 alert(s), 910 queued alert(s), 0 alert(s) deleted, 910 failed send(s), 0 ignored
However, by running a tcpdump I do not see any outbound/inbound connection to the configured email server.
After the reboot it seems messages are going through (and I do see outbound connections to the configured mail server)
2022-03-08 08:39:38,277 [INFO] [nav.alertengine.alertaddress.send] alert 5367 sent by Email to ****** due to immediately subscription 2
2022-03-08 08:39:38,500 [INFO] [nav.alertengine.alertaddress.send] alert 5320 sent by Email to ****** due to immediately subscription 2
2022-03-08 08:41:34,963 [INFO] [nav.alertengine.check_alerts] 0 new alert(s), sent 910 alert(s), 0 queued alert(s), 0 alert(s) deleted, 0 failed send(s), 0 ignored
I'm running Debian 10 and not have iptables/fail2ban on it.
Any help?
Thanks!
Andrea
