---
title: KeepKnown Reviews
meta_title: 'KeepKnown Reviews 2026: Details, Pricing, & Features | G2'
meta_description: Filter reviews by the users' company size, role or industry to find
  out how KeepKnown works for a business like yours.
date_modified: '2026-04-05'
parent_category:
  name: Email Security
  url: https://www.g2.com/categories/email-security
---

# KeepKnown Reviews
**Vendor:** KeepKnown  
**Category:** [Secure Email Gateway Software](https://www.g2.com/categories/secure-email-gateway)
## About KeepKnown
KeepKnown is an allow-list email filter for Gmail, Outlook, and Microsoft 365. It automatically filters unknown senders out of your inbox without deleting them, ensuring you only see emails from people you know and trust. Google Verified with CASA Tier 2 security certification. The strict inbox filter that keeps your focus on what matters.






- [View KeepKnown pricing details and edition comparison](https://www.g2.com/products/keepknown/reviews?open_modal_url=%2Fproducts%2Fkeepknown%2Fwishlists%3Fhost_path%3D%252Fproducts%252Fkeepknown%252Freviews%26source%3Dpdp_avatar&section=pricing&secure%5Bexpires_at%5D=2026-08-05+22%3A03%3A06+-0500&secure%5Bsession_id%5D=790989dc-55ce-49b4-b643-d09bbd90c1b0&secure%5Btoken%5D=a90ca3e6ba3932e7c5d475fa08a294e2131f389bbb8fcc0a758aef9c877715b7&format=llm_user)

## KeepKnown Features
****
- Phishing Protection
- Threat Response
- Domain Check
- Security Auditing
- AI/Machine Learning
- Third-Party Integrations
- AI Copilot
- Reporting/Analytics
- Anomaly/Malware Detection
- SURLB/URIBL Filtering
- Activity Dashboard
- Scheduled/Automated Reports
- For MSPs
- Whitelisting/Blacklisting
- Fraud Detection
- Spam Blocker
- Spam Quarantine
- API
- Data Leak Prevention
- Encryption
- Audit Trail
- Real-Time Monitoring
- Spam Analysis
- Policy Management
- Alerts/Escalation
- Email Management
- Vulnerability Scanning
- Generative AI
- Threat Protection
- Email Attachment Protection
- Email Filtering
- Two-Factor Authentication

**Functionality**
- Anti-Spam
- Anti-Malware
- Anti-Phishing
- Filtering Functionality
- Quarantine
- Outbound Email Monitoring
- Advanced Threat Intelligence/Protection
- Archiving
- Reporting
- On-prem deployment
- Email Attachment Protection
- Phishing Protection
- Single Sign On

**Agentic AI - Secure Email Gateway**
- Proactive Assistance

****
- Activity Dashboard
- Audit Trail
- Allow/Block List
- Generative AI
- Vulnerability Scanning
- Active Directory Integration
- Threat Response
- Search
- Intrusion Detection System
- Compliance Management
- Spam Blocker
- Encryption
- Data Verification
- Audit Management
- Alerts/Escalation
- Policy Management
- Customizable Reports
- Archiving & Retention
- Data Synchronization
- Activity Tracking
- Microsoft Outlook Integration
- SSL Security
- Secure Login
- Third-Party Integrations
- Spam Detection
- Real-Time Notifications
- Scheduled/Automated Reports
- Email Tracking
- Fraud Detection
- Event Logs
- Data Retention Management
- Backup and Recovery
- Threat Intelligence
- Whitelisting/Blacklisting
- Data Import/Export
- Two-Factor Authentication
- Reporting & Statistics
- Anti Virus
- Data Loss Prevention
- Risk Alerts
- Access Controls/Permissions
- Password Management
- AI Copilot
- Authentication

## Top KeepKnown Alternatives
  - [Paubox](https://www.g2.com/products/paubox/reviews) - 4.9/5.0 (608 reviews)
  - [Proofpoint Core Email Protection](https://www.g2.com/products/proofpoint-core-email-protection/reviews) - 4.6/5.0 (589 reviews)
  - [Virtru Email Encryption](https://www.g2.com/products/virtru-email-encryption/reviews) - 4.4/5.0 (412 reviews)