# Broadcom Symantec Email Security vs Sublime Security Sublime Rules: side-by-side comparison (2026) [Broadcom Symantec Email Security](https://cybersectools.com/tools/broadcom-symantec-email-security) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [Broadcom](https://cybersectools.com/companies/broadcom). [Sublime Security Sublime Rules](https://cybersectools.com/tools/sublime-security-sublime-rules) is a free [detection engineering](https://cybersectools.com/categories/detection-engineering) solution by [Sublime Security](https://cybersectools.com/companies/sublime-security). Features, integrations, deployment and the company behind each one, side by side. ## Our take What our shortlists say about the one we picked. ### [Broadcom Symantec Email Security](https://cybersectools.com/tools/broadcom-symantec-email-security) Best for: Large companies needing cloud and on-premises mail It makes the list because it offers both a cloud service and an on-premises Messaging Gateway, as a virtual or physical appliance, which suits large companies that still run their own mail servers. Browser isolation opens risky links away from the user's machine. If you plan to move mail to the cloud, ask how your policies carry over from the gateway to the cloud service. From [Best Email Security Solutions for Business](https://cybersectools.com/shortlists/best-email-security-platforms), Fall 2026. Reviewed by [Nika (Nikoloz) Kokhreidze](https://cybersectools.com/about). Need the answer fast? [Best Email Security Solutions for Business](https://cybersectools.com/shortlists/best-email-security-platforms) picks Proofpoint Core Email Protection, Microsoft Defender for Office 365, Mimecast Advanced Email Security and 4 more. ## Side-by-side comparison | | Broadcom Symantec Email Security | Sublime Security Sublime Rules | |---|---|---| | Pricing model | Commercial | Free | | Category | Email Security Platforms | Detection Engineering | | Verified | No | No | | Deployment type | Hybrid | On-Premises | | Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise | | Company | Broadcom | Sublime Security | | Headquarters | – | – | ### Use cases and capabilities | | Broadcom Symantec Email Security | Sublime Security Sublime Rules | |---|---|---| | Ransomware Prevention | Yes | – | | URL Filtering | Yes | – | | Detection Rules | – | Yes | | Open Source | – | Yes | | YARA | – | Yes | ### Core features **Broadcom Symantec Email Security** 10 features listed. Sign in on the page to see them. **Sublime Security Sublime Rules** 10 features listed. Sign in on the page to see them. ### Integrations **Broadcom Symantec Email Security** 1 integration listed. Sign in on the page to see them. **Sublime Security Sublime Rules** No integrations listed. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [Broadcom Symantec Email Security](https://cybersectools.com/tools/broadcom-symantec-email-security) fits if you need both cloud and on-premises options. - [Sublime Security Sublime Rules](https://cybersectools.com/tools/sublime-security-sublime-rules) fits if you need to run it on your own servers, you are a startup, you need a free product and you want an open-source product. ## Broadcom Symantec Email Security vs Sublime Security Sublime Rules FAQ Common questions when comparing Broadcom Symantec Email Security vs Sublime Security Sublime Rules for email security platforms. ### What is the difference between Broadcom Symantec Email Security and Sublime Security Sublime Rules? **Broadcom Symantec Email Security**: Enterprise email security platform for cloud and on-premise deployments, built by Broadcom. **Sublime Security Sublime Rules**: Open-source detection rules for email attacks like BEC, phishing, and malware, built by Sublime Security. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Broadcom Symantec Email Security and Sublime Security Sublime Rules? **Broadcom Symantec Email Security** is made by Broadcom. **Sublime Security Sublime Rules** is open-source. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is Broadcom Symantec Email Security a good alternative to Sublime Security Sublime Rules? In part. Broadcom Symantec Email Security and Sublime Security Sublime Rules are not in the same category on CybersecTools. Key differences: Broadcom Symantec Email Security is Commercial while Sublime Security Sublime Rules is Free. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [Broadcom Symantec Email Security vs SorbSecurity Cloud Email Security](https://cybersectools.com/compare/broadcom-symantec-email-security-vs-sorbsecurity-cloud-email-security) - [Broadcom Symantec Email Security vs Upfort](https://cybersectools.com/compare/broadcom-symantec-email-security-vs-upfort) - [Broadcom Symantec Email Security vs INKY Behavioral Email Security Platform](https://cybersectools.com/compare/broadcom-symantec-email-security-vs-inky-behavioral-email-security-platform) - [Sublime Security Sublime Rules vs SorbSecurity Cloud Email Security](https://cybersectools.com/compare/sorbsecurity-cloud-email-security-vs-sublime-security-sublime-rules) - [Sublime Security Sublime Rules vs Upfort](https://cybersectools.com/compare/sublime-security-sublime-rules-vs-upfort) - [Sublime Security Sublime Rules vs INKY Behavioral Email Security Platform](https://cybersectools.com/compare/inky-behavioral-email-security-platform-vs-sublime-security-sublime-rules) ## Alternatives to each - [See all Broadcom Symantec Email Security alternatives](https://cybersectools.com/alternatives/broadcom-symantec-email-security) - [See all Sublime Security Sublime Rules alternatives](https://cybersectools.com/alternatives/sublime-security-sublime-rules) --- Source: https://cybersectools.com/compare/broadcom-symantec-email-security-vs-sublime-security-sublime-rules For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/broadcom-symantec-email-security.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on Broadcom Symantec Email Security and Sublime Security Sublime Rules: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md