# Bitdefender GravityZone Extended Email Security vs Sendmarc DMARC Managed Services: side-by-side comparison (2026) [Bitdefender GravityZone Extended Email Security](https://cybersectools.com/tools/bitdefender-gravityzone-extended-email-security) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [Bitdefender](https://cybersectools.com/companies/bitdefender). [Sendmarc DMARC Managed Services](https://cybersectools.com/tools/sendmarc-dmarc-managed-services) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [Sendmarc](https://cybersectools.com/companies/sendmarc). Features, integrations, deployment and the company behind each one, side by side. 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 | | Bitdefender GravityZone Extended Email Security | Sendmarc DMARC Managed Services | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Email Security Platforms | Email Security Platforms | | Verified | No | No | | Deployment type | Cloud | Cloud | | Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | Company | Bitdefender | Sendmarc | | Headquarters | – | – | ### Use cases and capabilities | | Bitdefender GravityZone Extended Email Security | Sendmarc DMARC Managed Services | |---|---|---| | Microsoft 365 | Yes | – | | Ransomware Prevention | Yes | – | | Multi Tenancy | Yes | Yes | | DMARC | – | Yes | | SPF | – | Yes | | DKIM | – | Yes | | Spoofing | – | Yes | ### Core features **Bitdefender GravityZone Extended Email Security** 10 features listed. Sign in on the page to see them. **Sendmarc DMARC Managed Services** 10 features listed. Sign in on the page to see them. ### Integrations **Bitdefender GravityZone Extended Email Security** 2 integrations listed. Sign in on the page to see them. **Sendmarc DMARC Managed Services** 2 integrations listed. Sign in on the page to see them. ## Bitdefender GravityZone Extended Email Security vs Sendmarc DMARC Managed Services FAQ Common questions when comparing Bitdefender GravityZone Extended Email Security vs Sendmarc DMARC Managed Services for email security platforms. ### What is the difference between Bitdefender GravityZone Extended Email Security and Sendmarc DMARC Managed Services? **Bitdefender GravityZone Extended Email Security**: Cloud-native email security platform with SEG and API-based protection. Built by Bitdefender. **Sendmarc DMARC Managed Services**: MSP-focused multi-tenant DMARC management platform for email auth at scale. Built by Sendmarc. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Bitdefender GravityZone Extended Email Security and Sendmarc DMARC Managed Services? **Bitdefender GravityZone Extended Email Security** is made by Bitdefender. **Sendmarc DMARC Managed Services** is made by Sendmarc. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is Bitdefender GravityZone Extended Email Security a good alternative to Sendmarc DMARC Managed Services? Often, yes. Bitdefender GravityZone Extended Email Security and Sendmarc DMARC Managed Services are both Email Security Platforms products, and both cover Multi Tenancy. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [Bitdefender GravityZone Extended Email Security vs Ironscales DMARC Management](https://cybersectools.com/compare/bitdefender-gravityzone-extended-email-security-vs-ironscales-dmarc-management) - [Bitdefender GravityZone Extended Email Security vs Sendmarc DMARC Management Platform](https://cybersectools.com/compare/bitdefender-gravityzone-extended-email-security-vs-sendmarc-dmarc-management-platform) - [Bitdefender GravityZone Extended Email Security vs InboxSeguro](https://cybersectools.com/compare/bitdefender-gravityzone-extended-email-security-vs-inboxseguro) - [Sendmarc DMARC Managed Services vs Ironscales DMARC Management](https://cybersectools.com/compare/ironscales-dmarc-management-vs-sendmarc-dmarc-managed-services) - [Sendmarc DMARC Managed Services vs Sendmarc DMARC Management Platform](https://cybersectools.com/compare/sendmarc-dmarc-managed-services-vs-sendmarc-dmarc-management-platform) - [Sendmarc DMARC Managed Services vs InboxSeguro](https://cybersectools.com/compare/inboxseguro-vs-sendmarc-dmarc-managed-services) ## Alternatives to each - [See all Bitdefender GravityZone Extended Email Security alternatives](https://cybersectools.com/alternatives/bitdefender-gravityzone-extended-email-security) - [See all Sendmarc DMARC Managed Services alternatives](https://cybersectools.com/alternatives/sendmarc-dmarc-managed-services) --- Source: https://cybersectools.com/compare/bitdefender-gravityzone-extended-email-security-vs-sendmarc-dmarc-managed-services For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/bitdefender-gravityzone-extended-email-security.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on Bitdefender GravityZone Extended Email Security and Sendmarc DMARC Managed Services: 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