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How to enable the Sophos antivirus engine add-on
Important Information About Kaspersky and Cyren
Cannot update Avira
Failed anti-virus updates causes failed mails
Kaspersky engine is not updating.
Virus definition update fails with SSL/TLS error.
Mailflow stops with Failed VSE error on ME 20.3
Definition updates are flagged by Windows Defender as malware
Antivirus definitions are old but last update succeeded
AV updates failing and emails are delivered to emailsecurity\failedmails folder
Avira failedmails
Backend port conflict on 9090 with Symantec Endpoint Protection
Bidefender fails to initialise, emails are failing with Failed VSE.
Downloading Emails Through IMAP on GFI MailEssentials
Anti-Malware Engines and MailEssentials
Anti-Virus Scanning Engines in GFI MailEssentials
VSAPI in GFI MailEssentials
Email notification: 'Failed to update local [ENGINE] engine files (ERP)'
Email Was Blocked as Spam and Moved to the Inbox Subfolder
BitDefender Files Were Successfully Downloaded. but a Failure Occurred When Updating Local Engine Files
Email with id xx Cannot Be Approved Since It Was Blocked by VSAPI
'Error Updating Local Files: Error HRESULT E_FAIL Has Been Returned from a Call to a COM Component' When Updating the Vipre Antivirus Engine
Error: 'Number of numbers in MIME From exceeds maximum threshold' and MailEssentials Is Blocking Legitimate Email
Error: 'Regular expression too big' when PURBL looks up URLs in an email
GFI MailEssentials Email Notification: ‘New [ENGINE] update files downloaded and installed (ERP)’
GFI MailEssentials is writing temporary, sometimes infected files, to the Microsoft Windows temp folder which are then blocked by local antivirus software
How to configure Microsoft ISA Server to automatically download antivirus updates for GFI MailEssentials
How to disable GFI MailEssentials BitDefender Virus Scanning Engine
How to disable GFI MailEssentials from scanning emails
Manual Update Process for the Virus Scanning Engines
How to manually update Avira
How to manually update Bitdefender definitions
How to manually update Avira definitions
How to manually update Kaspersky Definitions
How to manually update McAfee definitions
How to manually update Cyren definitions in GFI MailEssentials
How to manually update Sophos definitions in GFI MailEssentials
In what order do the GFI MailEssentials EmailSecurity plugins process emails?
Inbound emails are blocked after the DNSBL feature is enabled
Kaspersky failedmails
MailEssentials | Missed malware
Mailflow stops when an antivirus engine is enabled in GFI MailEssentials
MailMonitoring taking a long time to process emails with recipients belonging to multiple groups
Malicious pdf files are not always detected by EmailSecurity when inside an email which is inside another email
Malware emails detected by the desktop antivirus engines are not detected by GFI MailEssentials
The Bitdefender Virus Scanning Engine blocks macros when macro scanning has been disabled.
AntiVirus Updates Fail with Message: 'Object reference not set to an instance of an object'
VIPRE Antivirus Failing to Update Error: ...Failed to copy new definition data
VIPRE Engine causes 100% CPU usage
Virus Scanning Engine Generates 'Scan Result: Failed [VSE]' Error
BitDefender Signature Value Decreases
How to configure Kaspersky Virus Scanning Engine
New Antivirus Engine Update Guide - 22.1 and above

Important Information About Kaspersky and Cyren

What happened? As of July 17, 2022, the Kaspersky antivirus engine was removed from GFI MailEssentials. On February 1, 2023, Cyren announced global job cuts due to liquidity problems. In light of this...
How to enable the Sophos antivirus engine add-on

Overview You recently purchased the Sophos antivirus engine add-on and you need to enable it in your GFI MailEssentials instance. If you use your GFI Accounts Portal credentials to license your inst...