Troubleshoot and resolve The system blocked a potential email loop. (WHMCS 8.4 and later) or Blocked Potential Email Loop (WHMCS 8.3 and earlier) errors.
Troubleshoot and resolve Logon failure: unknown user name or bad password errors.
Troubleshoot and resolve cannot select INBOX, is this a valid transport? errors.
Troubleshoot and resolve a POP3 cron not running emails and WHMCS Pop Cron Did Not Run errors.
Troubleshoot and resolve Error: read failed - connection closed? errors.
Customize the text strings that email piping and importing use to detect quoted email replies, preventing cluttered support tickets.
Troubleshoot and resolve Sender Verify Failed errors.