Overview
Proofpoint was founded in 2002 by Eric Hahn, a former chief technology officer of Netscape, and is headquartered in Sunnyvale, California; private-equity firm Thoma Bravo acquired it in 2021[1]. The company cites more than 5,000 employees, more than two million customers worldwide and more than half of the Fortune 100 as customers[1]. Core Email Protection can run as a secure email gateway (SEG), inspecting mail inline before it enters or leaves the organisation, or through APIs connected directly to Microsoft 365 without MX record changes, and covers inline, in-mailbox, post-delivery and click-time protection[2]. Threat Protection Workbench brings inbound, internal, account and supplier threats into a single investigation view, and the Satori Abuse Mailbox Agent handles user-reported messages[2]. In December 2025 Proofpoint completed the US$1.8 billion acquisition of Hornetsecurity, adding an MSP-focused Microsoft 365 product for smaller organisations[3]. Detection claims on the product page, such as blocking 99.999% of advanced threats, are vendor statements without published methodology. Prices are not published, and the breadth of the portfolio can make packaging hard to compare[2].
Proofpoint Core Email Protection features
- Secure email gateway or API deployment
- Click-time URL protection and post-delivery removal
- Threat Protection Workbench investigation view
- Satori agent for user-reported messages
- Supplier and account-compromise threat views
- Collaboration Security Prime for messaging and cloud apps
Proofpoint Core Email Protection pricing
Quote-based; the product page links to a how-to-buy page and demo request.
Proofpoint Core Email Protection strengths and limitations
Strengths
- Both gateway and API deployment
- Very large enterprise reference base
- Covers supplier and internal threats
- SMB/MSP line through Hornetsecurity
Limitations
- No published prices
- Large portfolio complicates packaging
- Headline detection rates are vendor claims
- Gateway deployment requires mail-routing changes
Appears in
Proofpoint Core Email Protection alternatives and competitors
Alternatives to Proofpoint Core Email Protection: companies ranked in the same lists.
Microsoft Power BI
Mimecast
Abnormal AI
Check Point Software Technologies
Darktrace / EMAIL- Cisco Secure Client
Barracuda Email Protection
Hornetsecurity VM Backup- Sophos XDR
IRONSCALES
Fortinet
Material Security
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