4.7.8 MetaDefender Email Gateway Security release

January 28, 2020

MetaDefender Email Gateway Security 4.7.8 is a maintenance release focusing on performance tuning and other minor improvements and fixes.

The most important news are summarized in the table below.

Alert when queue size grown large

MetaDefender Email Gateway Security now supports a new option to send email alerts when the processing queue size exceeds a pre-configured threshold. With this option Email Gateway Security can warn administrators about potential email delivery delays or problems with email processing.

For details see the Email alerts section in 3.5.1 Configuration.

Improved processing performance

Email Gateway Security 4.7.8 further improved processing performance by reducing the amount of data exchanged within the application by internal processing components.

Windows-1255 encoding problems

When emails were sent with Windows-1255 encoding, in special cases certain characters might have been incorrect in the email after processing.

Upgrade didn't preserve settings

The upgrade procedure didn't preserve the parameter value scheduled_db_optimization_time in the registry, overwriting the configured value with the default value (03:00).

For details see 3.1.2 Windows Registry configuration.

Missing processing history entries

In special cases, scan timeout did not generate a processing history entry.

Encrypted files could fail to sanitize

Password protected documents could fail to sanitize with recent versions of MetaDefender Core.