Direct reply via email never seems to log in to check for email

Description:

rocket chat never checks for emails. When I direct message a user it does send an email out to that user, and I've test sending emails back for direct replies, but RocketChat never actually attempts to connect via POP and get those emails. I enabled debugging and watched the rocket chat log, let the check time to 2 minutes and it does not ever even attempt to log into the email server to check for new mail. I've also configured it for IMAP, and seem thing... neither rocketchat, nor the email server logs a connection attempt.

Expected behavior:

The rocketchat server should periodically check for emails and post the direct replies.

Actual behavior:

The server does not ever check for replies.

Server Setup Information:

• Version of Rocket.Chat Server: 1.0.2
• Operating System: Ubuntu 18.04.2
• Deployment Method: tar
• Number of Running Instances: 1
• DB Replicaset Oplog: yes
• NodeJS Version: 8.11.3
• MongoDB Version: 3.16.12

Additional context

Relevant logs:

May 24 19:33:16 rcchat001 rocketchat[11448]: Starting Email Intercepter...
May 24 19:33:16 rcchat001 rocketchat[11448]: Disconnecting already running POP instance...
May 24 19:33:16 rcchat001 rocketchat[11448]: Starting new POP instance......

Then nothing else happens.

Start by tracing the server's "Email Intercepter" startup messages and the POP/IMAP email-checking path described in the issue, using the provided logs to determine why no connection attempt occurs. Done means the server periodically connects to the configured mailbox and posts direct email replies as messages.