# Bitdefender GravityZone Security for Exchange vs Red Sift OnDMARC: side-by-side comparison (2026) [Bitdefender GravityZone Security for Exchange](https://cybersectools.com/tools/bitdefender-gravityzone-security-for-exchange) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [Bitdefender](https://cybersectools.com/companies/bitdefender). [Red Sift OnDMARC](https://cybersectools.com/tools/red-sift-ondmarc) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [Red Sift](https://cybersectools.com/companies/red-sift). 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 Security for Exchange | Red Sift OnDMARC | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Email Security Platforms | Email Security Platforms | | Verified | No | No | | Deployment type | On-Premises | Cloud | | Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | Company | Bitdefender | Red Sift | | Headquarters | – | – | ### Use cases and capabilities | | Bitdefender GravityZone Security for Exchange | Red Sift OnDMARC | |---|---|---| | Spam Prevention | Yes | – | | Zero Day | Yes | – | | Microsoft 365 | Yes | – | | DKIM | – | Yes | | DMARC | – | Yes | | SPF | – | Yes | | TLS | – | Yes | ### Core features **Bitdefender GravityZone Security for Exchange** 10 features listed. Sign in on the page to see them. **Red Sift OnDMARC** 10 features listed. Sign in on the page to see them. ### Integrations **Bitdefender GravityZone Security for Exchange** 3 integrations listed. Sign in on the page to see them. **Red Sift OnDMARC** No integrations listed. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [Bitdefender GravityZone Security for Exchange](https://cybersectools.com/tools/bitdefender-gravityzone-security-for-exchange) fits if you need to run it on your own servers. - [Red Sift OnDMARC](https://cybersectools.com/tools/red-sift-ondmarc) fits if you want a cloud product. ## Bitdefender GravityZone Security for Exchange vs Red Sift OnDMARC FAQ Common questions when comparing Bitdefender GravityZone Security for Exchange vs Red Sift OnDMARC for email security platforms. ### What is the difference between Bitdefender GravityZone Security for Exchange and Red Sift OnDMARC? **Bitdefender GravityZone Security for Exchange**: Email security for Microsoft Exchange servers with antispam and antimalware. Built by Bitdefender. **Red Sift OnDMARC**: Email authentication platform implementing DMARC, SPF, DKIM, and BIMI protocols. Built by Red Sift. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Bitdefender GravityZone Security for Exchange and Red Sift OnDMARC? **Bitdefender GravityZone Security for Exchange** is made by Bitdefender. **Red Sift OnDMARC** is made by Red Sift. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is Bitdefender GravityZone Security for Exchange a good alternative to Red Sift OnDMARC? Often, yes. Bitdefender GravityZone Security for Exchange and Red Sift OnDMARC are both Email Security Platforms products. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [Bitdefender GravityZone Security for Exchange vs SmarterTools SmarterMail](https://cybersectools.com/compare/bitdefender-gravityzone-security-for-exchange-vs-smartertools-smartermail) - [Bitdefender GravityZone Security for Exchange vs MX Layer Outbound Email Filtering](https://cybersectools.com/compare/bitdefender-gravityzone-security-for-exchange-vs-mx-layer-outbound-email-filtering) - [Bitdefender GravityZone Security for Exchange vs PowerDMARC Hosted DMARC](https://cybersectools.com/compare/bitdefender-gravityzone-security-for-exchange-vs-powerdmarc-hosted-dmarc) - [Red Sift OnDMARC vs SmarterTools SmarterMail](https://cybersectools.com/compare/red-sift-ondmarc-vs-smartertools-smartermail) - [Red Sift OnDMARC vs MX Layer Outbound Email Filtering](https://cybersectools.com/compare/mx-layer-outbound-email-filtering-vs-red-sift-ondmarc) - [Red Sift OnDMARC vs PowerDMARC Hosted DMARC](https://cybersectools.com/compare/powerdmarc-hosted-dmarc-vs-red-sift-ondmarc) ## Alternatives to each - [See all Bitdefender GravityZone Security for Exchange alternatives](https://cybersectools.com/alternatives/bitdefender-gravityzone-security-for-exchange) - [See all Red Sift OnDMARC alternatives](https://cybersectools.com/alternatives/red-sift-ondmarc) --- Source: https://cybersectools.com/compare/bitdefender-gravityzone-security-for-exchange-vs-red-sift-ondmarc For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/bitdefender-gravityzone-security-for-exchange.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on Bitdefender GravityZone Security for Exchange and Red Sift OnDMARC: 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