9 of 15 email security tools on our old list changed owner, name or listing

01What became of the fifteen

We checked each product on the 2022 list against its vendor’s current site and TechBag’s own intel pages. Six are unchanged: Proofpoint Email Protection, Forcepoint Email Security, Fortinet FortiMail, the Paubox Email Suite, ESET PROTECT Complete and DuoCircle’s filtering.¹⁸⁹ Four are the same product under a new owner. TitanHQ, maker of SpamTitan, ArcTitan and EncryptTitan, was sold in June 2025 to Redstor, a Bregal Milestone portfolio company, and the two now trade together as CyberSentriq.² Barracuda passed from Thoma Bravo to KKR in August 2022, two months after the list was published.³

Three were renamed or moved. Trend Micro’s Email Security is now Vision One Email and Collaboration Security, and the company markets its email line, ScanMail included, under the TrendAI name.⁴ The Forcepoint Trusted Mail System went with Forcepoint’s federal business when TPG carved it out; that business was renamed Everfox in January 2024 and still lists the Trusted Mail System among its cross-domain products.⁵⁶ Two are no longer listed at all under their 2022 names: Comodo’s site now offers a single “Secure Email Gateway” and names neither Dome Antispam nor KoruMail.⁷

The churn is not confined to the old list. Cloudflare Email Security, one of the 14 filters in the guide, still carries its former brand, Area 1, in TechBag’s record of it.¹ Email security is a category that private equity and platform vendors buy into, and a buyer signing a three-year term should expect the owner, the roadmap or the support desk to change before it ends.

02The shape changed: from the MX record to the mailbox

The 2022 list closed by calling every entry a gateway: mail is routed through the vendor by changing the domain’s MX record, scanned, and passed on. That model still exists. But a second one has grown up beside it, in which the product connects to Microsoft 365 or Google Workspace through the provider’s API, reads mail after Microsoft or Google has filtered it, and pulls back a message that turns out to be malicious after delivery.

TechBag’s guide records the deployment model of each filter from the vendor’s documentation. Three are gateway only: N-able Mail Assure, FortiMail and Forcepoint. Seven offer both, including Proofpoint, Mimecast, Barracuda and Sophos. Three work only through the API: Abnormal, Check Point and Coro.¹

03Count what Microsoft already gives you first

Microsoft announced in February 2026 that Defender for Office 365 Plan 1, its own anti-phishing, Safe Links and Safe Attachments layer, would be added to Microsoft 365 E3 and Office 365 E3, with the rollout complete by 1 August 2026.¹⁰ An Indian company on E3 now owns a layer it used to buy separately. That does not make a third-party filter redundant, but it changes what one is for: the case for buying is now the detection Microsoft does not do well, and the evidence for it should come from a trial on your own mail, not a feature list.

The trial is cheaper than it used to be. An API-mode product can be connected to a Microsoft 365 tenant in read-only mode, without touching the MX record, and left to report what it would have caught behind Defender for a month. Ask each shortlisted vendor for that report on your own mail: how many messages it flagged that Microsoft delivered, how many of those were payload-free requests for money or credentials, and how many were false alarms. A gateway product cannot be trialled this way without rerouting mail, which is itself a fair point to weigh against it.

04Where your mail is read

An email filter reads every message the company receives. For a regulated Indian firm, where that reading happens is a procurement question before it is a technical one, and the guide’s answers are thin. Five of the 14 filters can run on the customer’s own hardware or virtual machines: Proofpoint, Barracuda, FortiMail, Forcepoint and Kaspersky. Only two document an Indian data centre for mail: Proofpoint, which opened one in 2025, and Sophos, through its Mumbai region. Five cover collaboration stores such as Teams or SharePoint as well as the inbox.¹¹¹