Here is a list of issues that were fixed in this release - build 2.6.41.

Issue Key Description
AVSUPPORT-48663, AVSUPPORT-48605 Bounce messages to recipients caused due to malformed incoming inline email. System updated to improve handling of malformed emails.
AVSUPPORT-46654 Office365 onboarding failed due to failure to resolve Admin role id.
AVSUPPORT-50975 Wrong detection status for some attachments - attachment status shown as malicious, but when drilling down into it status is clean.
AVSUPPORT-52342 A use was not recognized as internal user, causing impersonation detection not being triggered, resulting in phishing email reached the user inbox.
AVSUPPORT-51862 IRaaS decline event was not processed correctly, causing no notifications being issued and wrong counter presented.