Top Email Security Software for Web-Based, Cloud, SaaS

Between them, the 9 email security software on this page cover email attachment protection (8), anti spam (8), anti virus (8) and Reporting/Analytics (8). 9 of them have written a profile you can read before you get in touch.

1. 1

   

   Clean Mailbox

   Email Attachment Protection · Anti Spam · Anti Virus

   Clean Mailbox is an email filtering gateway delivered as a service.

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   Why #1: No major incidents in 90 days (status page)

   Not yet on record: client reviews, vetting.

2. 2

   

   MimeCast Email Security

   Archiving & Retention · Anti Spam · Anti Virus

   MimeCast Email Security is the email protection product from Mimecast.

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   Why #2: Customer numbers stated on its own website, as stated on its own website, read 5 Oct 2026

   Not yet on record: client reviews, vetting.

3. 3

   

   ProtonMail

   Email Attachment Protection · Anti Spam · Anti Virus

   ProtonMail is an encrypted email provider. Its stated mission is to protect privacy by making end-to-end encryption simple enough for anyone, and it describes itself as the world's…

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   Why #3: Launched 2014, as stated on its own website, read 5 Oct 2026

   Not yet on record: client reviews, vetting.

4. Also listed, not yet ranked. We hold nothing checkable on these yet that ranks them here: no client review, vetting, award, expert review, or fact stated on their own website (and on a place ranking, where they are based). They follow in order of their TrustList Score. How TrustList ranks · Get vetted, free
5. –

   

   Secure Mail Gateway

   Allow / Block List · Email Attachment Protection · Anti Spam

   Secure Mail Gateway is an anti-spam product that screens a company's incoming email. It is meant to keep ransomware and other advanced threats from arriving in staff inboxes.

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6. –

   

   Cofense PhishMe

   Email Attachment Protection · Policy Management · Reporting/Analytics

   Cofense PhishMe is a security awareness product focused on phishing.

   Write a review
7. –

   

   OnDMARC

   Email Attachment Protection · Anti Spam · Anti Virus

   OnDMARC is a product from Red Sift, a cloud cybersecurity platform.

   Write a review
8. –

   

   Spambrella

   Allow / Block List · Email Attachment Protection · Archiving & Retention

   Spambrella is a worldwide software-as-a-service provider of email security.

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9. –

   

   Cisco Email Security

   Email Attachment Protection · Anti Spam · Anti Virus

   Cisco Email Security is an email protection product from Cisco. It is designed for Office 365 and helps businesses deal with the threats that arrive by email.

   Write a review
10. –

    

    SonicWall Email Security

    Email Attachment Protection · Anti Spam · Anti Virus

    SonicWall Email Security is part of the SonicWall cybersecurity range, which covers network, endpoint and cloud protection.

    Write a review

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