==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release):
0.9.7
- Deployed with iRedMail Easy or the downloadable installer?
Downloadable
- Linux/BSD distribution name and version:
Ubuntu 16.04
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):
MySQL
- Web server (Apache or Nginx):
Apache
- Manage mail accounts with iRedAdmin-Pro?
No
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

I am seeing iRedAPD die from time to time, for which I can't find the reason from looking into the logs. After it dies, I can see the error in the log:

"connect to 127.0.0.1:7777: Connection refused"

but since this happens maybe once a month, I am unable to track down the exact cause. When it's dead, this seems to cause many emails to not deliver.

This has happened to me like 5 ~ 6 times.

Do you know what causes this? Is it a good idea to turn off iRedAPD completely?

Thanks!