Overview

After installing Malwarebytes, mail flow stops.

This is potentially caused by the corruption of the MailEssentials Quarantine, as it may contain malware that is identified by Malwarebytes. 

Solution

• Make sure to add MailEssentials to Malwarebytes' exclusion list, as explained in the Recommended Anti-virus and Backup Exclusions article.
• Recreate the quarantine database as described in the How to recreate the GFI MailEssentials EmailSecurity Quarantine database article.

• Open the Windows Services Manager by navigating to Start > Run > type services.msc and stop the following services:

  • Microsoft Transport Agent service
  • GFI List Server
  • GFI MailEssentials Attendant
  • GFI MailEssentials AS Scan Engine
  • GFI MailEssentials Autoupdater
  • GFI MailEssentials AV Scan Engine
  • GFI MailEssentials Backend
  • GFI MailEssentials Legacy Attendant
  • GFI POP2Exchange
  • GFI MailEssentials Quarantine Action Services
• Purge the reporting queues and recovery queues:
  • Go to Start > Run > type compmgmt.msc and click OK to launch the Computer Management snap-in
  • Go to the Services and Applications node and browse to Message Queuing
  • Open the Private Queues 
  • Expand all the gfimereportq@# and all *@recovery queues and two new nodes will appear, Queue Messages and Journal Messages
    1. Right-click Queue Messages, select All Tasks > Purge
    2. A confirmation window will appear
    3. Press OK to clear all messages in the queue
    4. Repeat these steps for all the gfimereportq@# and all *@recovery queues 
    

• Open the Windows Services Manager by navigating to Start > Run > type services.msc and start the following services:

  • Microsoft Transport Agent service
  • GFI List Server
  • GFI MailEssentials Attendant
  • GFI MailEssentials AS Scan Engine
  • GFI MailEssentials Autoupdater
  • GFI MailEssentials AV Scan Engine
  • GFI MailEssentials Backend
  • GFI MailEssentials Legacy Attendant
  • GFI POP2Exchange
  • GFI MailEssentials Quarantine Action Services