Problems in the support ticket system and its related features can prevent email replies from importing properly and cause other disruptions.
Email piping automatically imports email replies that a support department email address receives into the corresponding support ticket.
Spam control filters in WHMCS reduce the amount of spam that you receive in your ticket system by blocking emails, keywords, and phrases.
Troubleshoot and resolve The system prevented an autoresponder from opening a ticket. (WHMCS 8.4 and later) or Prevented an Auto Responder from Opening a Ticket (WHMCS 8.3 and earlier) errors.
Troubleshoot and resolve Department Not Found errors.
Troubleshoot and resolve issues with DirectAdmin sending piped email replies twice.
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.