Version 6.2.0

Release dateScope
8th November, 2025

This release provisions enforceable quarantine areas: separated parts of the Quarantine that administrators can permit less privileged users to supervise.

Support has been added for SMTP oAuth to deal with Microsoft's retirement of SMTP AUTH in Exchange Online. The current cutover date is April 30th 2026.

New & improved

Quarantine areas

Quarantine areas are separated parts of the Quarantine that administrators can permit less privileged users to supervise. Quarantine areas are built on top of the long existing concept of saving filters.

For details see Quarantine areas.

Forward blocked emails

As a new action, it is now supported to forward emails (e.g. to SoC for further analysis) that were blocked by MetaDefender Core.

For details see the Scan subsection under Security policy.

SMTP oAuth support

With this release, Email Gateway Security supports SMTP OAuth to deal with Microsoft's retirement of SMTP AUTH in Exchange Online.

For details see SMTP oAuth authentication.

Optional SPF on From

Email Gateway Security extends SPF checking SPF records not only by the MAIL FROM domain, but by the email's From header domain, too. This strict check can cause problems, so checking From domain for SPF has been made optional.

For details see the SPF lookup subsection in the Anti-phishing specific settings section in Security policy.

DKIM with sender domain

It is supported to automatically take the domain part from the SMTP sender email address (MAIL FROM) and use it as the signer domain in DKIM or ARC signatures.

This feature may be useful for organizations with multiple sender domains.

For details see the DKIM signing subsection in Direction.

CEF in milliseconds

When CEF logging is enabled, it is now supported to have the log timestamps in milliseconds.

For details see the cef_ms_ts entry under HKEY_LOCAL_MACHINE\SOFTWARE\OPSWAT\Metadefender Email Security\logger.

SOC log improvements

The soc level has been modified to contain the MetaDefender Core side data_id and scan_result for each component.

Syslog over TLS

This release implements syslog over TLS.

For details see HKEY_LOCAL_MACHINE\SOFTWARE\OPSWAT\Metadefender Email Security\logger.

Changed

SOC log changes

For password protected email rescans the email.scan log entry identifier was changed to email.rescan.

In the email.scan log entry the scan_result_urls field (that contained display_name, is_hash_result and url) was renamed to scan_result_details. This new entry contains the data_id and scan_result.

In the email.scan log entry the batch_id property was added that contains the MetaDefender Core side scan batch ID.

For details see SOC log level.

Single quote escaping

In SOC level logs, single quote ' characters are escaped by doubling each single qoute character (e.g. ' '' , '' '''' , etc.).

For details see SOC log level.

Fixed

Database port over 32767

The previous releases of EGS version 6 did not accept port numbers higher than 32767 as a database port.

Mishandling of code pages

Emails encoded with certain code pages (e.g. Windos-1250) were not correctly handled in certain cases (e.g. Eastern-European languages).

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