Microsoft Teams lacks a setting to filter or block chat requests from people not in the user's contact list, causing unwanted spam.

Existing solution has no built-in setting to block or filter chat requests from non-contacts, unlike other conferencing apps.

Severity

3Medium

Willingness to Pay

none

Added

Jun 25, 2026

Implied Software Gaps

A contact-based chat request filtering feature for Microsoft Teams

App Concept

ChatGuard for Teams

A security add-on that auto-filters and blocks unsolicited chat requests from unknown users in Microsoft Teams. It integrates seamlessly to provide the missing contact-based filtering, reducing spam and distraction.

Key Features

Block chat requests from non-contacts
Customizable allow list for external trusted domains
Quarantine suspected spam messages for review
User notification and request approval workflow

Target Users: Enterprise employees and Teams administrators in any industry using Microsoft Teams for communication.

Revenue Model: Freemium with $3.99/mo per user for full blocking and advanced filters, plus volume discounts for enterprise deployments.

Existing Solutions Mentioned

Microsoft Teams

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