Mimecast MSO – New Critical Update and End of Life Announcement for All Previous Releases

Critical Information for Immediate Review

This App information alert is provided by HeliX to bring immediate attention to critical information about one of the Apps in the HeliX catalog. Due to the critical nature of this alert, it is being delivered to all subscribers regardless of the email notification options and current status of this App in individual subscriptions. See below for details about the affected App and a summary of the vendor information that warrants this special alert.

Alert Summary

Alert Details

Per this recent Mimecast announcement:

“All versions of Mimecast for Outlook prior to v7.10 will be retired on February 28, 2022. After this date, older versions of Mimecast for Outlook will no longer be operable or able to communicate with Mimecast.

“The latest version of Mimecast for Outlook contains important security enhancements and new features. For your users to continue using MFO, all instances will need to be updated to v7.10 by February 28, 2022. We recommend updating to the latest version of Mimecast for Outlook as soon as possible.”

The creation, delivery, and testing of an updated Mimecast for Outlook client installation package is included with your HeliX Subscription. However, please note that there are critical authentication prerequisites which must be met prior to rolling out this client upgrade. If you need assistance deploying the updated package or configuring your Mimecast or Windows environment to support this release, please submit a service request to service@helient.com and we will assign an engineer to assist.

About Helix Notifications

The HeliX service notifies its subscribers of certain third-party alerts that may be relevant to the subscribers’ IT systems. The third party that published this alert is not in any way affiliated with Helient Systems. Helient Systems has not independently verified the information in the alert, and is not responsible for its availability, accuracy, or completeness. By delivering this notification, Helient Systems does not assume responsibility for installing any updates or patches, or performing any remediation, repair, or other services, that may be recommended in the alert. Each subscriber is solely responsible for updating its own production systems with any and all recommended updates and patches.