[Beta] Advanced Graymail Protection

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 helps customers identify and manage these messages by proactively classifying graymail during message analysis and supporting consistent remediation actions (for example, moving messages to a dedicated Promotions or Spam/Junk folder) across Microsoft 365 and Google Workspace.

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Best Practice
Sublime recommends routing graymail to a Promotions folder when available.
Promotions is intended for legitimate bulk mail, while Spam/Junk is designed for higher-risk or unwanted messages. Moving legitimate marketing messages to Spam/Junk may influence how your email provider treats future messages from the same sender. Organizations that prefer to use Spam/Junk for graymail can continue to do so.
Microsoft 365: If a Promotions folder doesn't already exist, the Move to Promotions Action creates one automatically. See Move to Promotions for details.

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 to another folder of their choice. Sublime remembers that preference for the individual user and automatically delivers future messages from the same sender to the preferred location.

Sublime learns from messages moved into or out of Promotions or Spam/Junk only. Moving messages between other folders does not affect user preferences. Also, messages moved directly to Trash/Deleted Items 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 email address, not the sender domain. For example, [email protected] and [email protected] are treated as separate senders.
Moving a message out of the designated graymail folder (for example, Promotions or Spam/Junk) creates or updates a preference to deliver future messages from that sender outside that folder.
Moving a message into the designated graymail folder creates or updates a preference to deliver future messages from that sender to that folder.
Moving messages between other folders does not create or update preferences.
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.

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Example End-User Communication
How to Manage Graymail Preferences
Sublime automatically sorts marketing emails, newsletters, and other bulk mail into a dedicated folder (such as Promotions or Spam/Junk) to help keep your inbox focused on what matters.
You're always in control. If a message ends up in the wrong place, simply move it into or out of Promotions or Spam/Junk. No additional work is needed. Sublime will remember that choice and automatically deliver future messages from the same sender to the same location.

A few things to know:

Moving a message out of Promotions or Spam/Junk teaches Sublime to deliver future messages from that sender to the folder you moved it to.

Moving a message into Promotions or Spam/Junk teaches Sublime to keep future messages from that sender there.

Sublime only learns from messages moved into or out of Promotions or Spam/Junk. Moving messages between other folders (for example, from Inbox to a custom folder) won't affect future delivery.

Preferences are applied based on the sender email address, not the sender domain. For example, [email protected] and [email protected] are treated as separate senders.

Changes apply to future messages only. Emails you've already received won't be moved.

Moving a message directly to Trash/Deleted Items doesn't update your preferences.

Want to Change an Existing Preference?
If you want the messages back in Promotions or Spam/Junk, simply move the sender's message back.
If you've already taught Sublime to deliver messages to a folder and want to change that preference to another folder (not Promotions or Spam/Junk), you have two options:

Create a rule or filter in your email provider.

Move a message from that sender back into Promotions (or Spam/Junk), then move it from there to your new preferred folder. This updates Sublime's saved preference for future messages.