==== Required information ====
- iRedMail version: 0.9.2
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Web server (Apache or Nginx): Apache
- Linux/BSD distribution name and version: Debian 8
- Related log if you're reporting an issue: /var/log/mail.log
====
Got this this morning when sending an email to test a client's mailbox: SMTP Error (451) Failed to add recipient. Upon checking my mail.log in /var/log, I could see this:
Jun 7 12:59:06 mail postfix/smtpd[3536]: warning: connect to 127.0.0.1:7777: Connection refused
Jun 7 12:59:06 mail postfix/smtpd[3536]: warning: problem talking to server 127.0.0.1:7777: Connection refused
Jun 7 12:59:07 mail postfix/smtpd[3536]: warning: connect to 127.0.0.1:7777: Connection refused
Jun 7 12:59:07 mail postfix/smtpd[3536]: warning: problem talking to server 127.0.0.1:7777: Connection refused
Which meant that iRedAPD stopped accepting connections again. Noteworthy is the fact that Debian pushed out new kernel updates, and new SystemD updates yesterday, which I updated. When I restarted iRedAPD, the mail started flowing again. I'm hoping that this isn't a new problem based on the updates that Debian pushed yesterday... Any advice for me?