| Microsoft Defender for Office 365 | Microsoft documents Defender for Office 365 as its email and collaboration security solution for cloud mailboxes.[1] | Microsoft names Safe Links and Safe Attachments as Defender for Office 365 features.[1] | Microsoft identifies Defender for Office 365 as the email and collaboration security solution for Microsoft 365 cloud mailboxes.[1] | Not documented[1] |
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| IRONSCALES Email Security | IRONSCALES protects inbound and outbound email against phishing, spam, BEC, malware, and QR lures.[2] | Not documented[2] | IRONSCALES says it augments Microsoft 365 and Google Workspace.[2] | Not documented[2] |
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| Check Point Harmony Email & Collaboration | Check Point describes stopping email threats before they reach the inbox.[3] | Check Point names link and attachment analysis plus phishing prevention.[3] | Check Point names Microsoft 365 and Google Workspace as supported email and collaboration environments.[3] | Not documented[3] |
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| Sophos Email | Sophos describes a cloud-based email gateway that protects business mail from malicious threats.[4] | Sophos documents AI email defenses, phishing protection, attachment analysis with sandboxing, and time-of-click URL rewriting.[5] | Sophos documents Microsoft 365, Google Workspace, Gmail, and other SaaS email services managed by the organization.[6] [7] | Not documented[4] |
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| Proofpoint Core Email Protection | Proofpoint positions Core Email Protection as email threat protection delivered by API or gateway.[8] | Proofpoint documents attachment and URL sandboxing with behavioral detection.[8] | Proofpoint names Microsoft 365 and Google Workspace as direct Core Email Protection platforms.[8] | Not documented[8] |
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| FortiMail | FortiMail lists inbound email protection against phishing, BEC, impersonation, and account takeover.[9] | Not documented[9] | FortiMail documents security for Microsoft 365 and Google Workspace, including Exchange Online clawback.[9] [9] | Not documented[9] |
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| Cloudflare Email Security | Cloudflare says it analyzes every incoming email.[10] | Cloudflare describes phishing, malware, links, and attachment protection.[11] [12] [10] | Outlook and Gmail[10] | Not documented[11] |
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| Mimecast Advanced Email Security | Mimecast describes blocking advanced threats across business email.[13] | Mimecast identifies phishing, BEC, and ransomware threats.[13] | Mimecast names Microsoft 365, Google Workspace, on-premise email, and hybrid environments.[13] | Not documented[13] |
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| Vade for Microsoft 365 | Vade positions this product as email security for Microsoft 365.[14] | Vade lists anti-malware, phishing, spam, and investigation controls for its Microsoft 365 security product.[15] | The vendor page identifies the product as Microsoft 365 Email Security.[14] | Not documented[14] |
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| Hornetsecurity 365 Total Protection | The suite lists Spam and Malware Protection and Advanced Threat Protection for Microsoft 365.[16] | Hornetsecurity lists spam and malware filtering, phishing, sandboxing, URL rewriting, quishing, and BEC detection.[17] | Hornetsecurity positions 365 Total Protection for Microsoft 365.[16] | Not documented[16] |
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| Mailinblack Protect | Mailinblack positions its email suite as protecting mailboxes and blocking email cyberattacks.[18] | Mailinblack says Protect blocks phishing and spearphishing before delivery and lists link analysis and post-delivery remediation.[19] [19] | Mailinblack describes Protect as complementary security for Microsoft 365.[20] | Not documented[18] |
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| TitanHQ SpamTitan | SpamTitan describes inbound scanning and email filtering for spam, malware, and other threats.[21] [21] | SpamTitan describes phishing protection, malicious-link blocking, attachment filtering, and sandboxing for suspicious files.[21] [22] [22] | The vendor documents a Microsoft 365 additional protection layer and Active Directory and LDAP synchronization.[21] [22] | Not documented[21] |
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| VIPRE Integrated Email Security | VIPRE says Integrated Email Security protects inbound, outbound, and internal mail with native integration.[23] [24] | VIPRE describes protection against BEC, AI-crafted phishing, deepfakes, and QR-code scams.[25] | VIPRE names Microsoft 365 and Google Workspace for Integrated Email Security.[23] | Not documented[23] |
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| ESET Cloud Office Security | ESET describes protection for emails in Exchange Online with spam filtering.[26] | Spam, malware, and phishing protection[26] | ESET names Microsoft 365, Exchange Online, and OneDrive for Cloud Office Security.[26] | Not documented[26] |
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| Kaspersky Security for Mail Server | Kaspersky says Security for Mail Server counters spam and email-borne infections in corporate email exchange.[27] | Phishing, QR-code, and malware threats[27] | Kaspersky names Microsoft Exchange Servers and Microsoft 365 among supported email environments.[28] | Not documented[27] |
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| INKY Email Security | INKY lists inbound mail protection as a product capability.[29] | INKY lists Advanced Attachment Analysis.[29] | INKY lists Microsoft 365 and Google Workspace as supported platforms.[29] | Not documented[29] |
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