Overview

Gray/greymail is a class of high-volume, non-malicious messages—such as marketing emails, newsletters, and other “subscription” content—that can drown out important mail and reduce end-user productivity.

Sublime’s Advanced Graymail Protection capability helps customers identify and manage these messages more effectively by enabling proactive classification during message analysis and supporting consistent remediation actions (for example, moving messages into a dedicated Promotions folder or Spam folder, depending on appetite) across Microsoft 365 and Google Workspace.

End-User Preferences

Sublime's Advanced Graymail Protection is designed to reduce inbox clutter while ensuring users retain visibility and control over their email.

Managing Graymail Messages

Users can review graymail messages at any time by visiting the folder designated by their organization (for example, Promotions or Spam/Junk).

If a user believes a message has been incorrectly placed, they can move it back to their Inbox or another folder of their choice. Sublime will remember that preference for the individual user and automatically deliver future messages from the same sender to the preferred location.

Preferences are only updated when messages are moved between folders. Messages moved directly to Trash do not create or update sender preferences.

How Preferences Work

Sublime learns from user actions to personalize graymail handling over time.

• Preferences are specific to each individual user and do not affect other users in the organization.
• Preferences are applied based on the sender of the message.
• Moving a message out of the designated graymail folder creates or updates a preference for future messages from that sender.
• Preferences only affect future messages and do not retroactively move messages that have already been delivered.
• Messages moved directly to Trash/Deleted Items do not create or update preferences.

As users continue to organize their email, Sublime automatically adapts to their preferences, helping ensure important messages remain visible while promotional content stays organized.

Coming Soon

Users will also be able to indicate that a message should be treated as graymail by moving it from their Inbox into a designated Promotions or Spam/Junk folder. This feedback will update user preferences.