# Bitdefender GravityZone Extended Email Security vs MailChannels Outbound Filtering: 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). [MailChannels Outbound Filtering](https://cybersectools.com/tools/mailchannels-outbound-filtering) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [MailChannels](https://cybersectools.com/companies/mailchannels). 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 | MailChannels Outbound Filtering | |---|---|---| | 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 | Mid-Market, Enterprise | | Company | Bitdefender | MailChannels | | Headquarters | – | – | ### Use cases and capabilities | | Bitdefender GravityZone Extended Email Security | MailChannels Outbound Filtering | |---|---|---| | Microsoft 365 | Yes | – | | Ransomware Prevention | Yes | – | | Multi Tenancy | Yes | Yes | | Spam Prevention | – | Yes | | SMTP | – | Yes | | Alerting | – | Yes | ### Core features **Bitdefender GravityZone Extended Email Security** 10 features listed. Sign in on the page to see them. **MailChannels Outbound Filtering** 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. **MailChannels Outbound Filtering** No integrations listed. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [Bitdefender GravityZone Extended Email Security](https://cybersectools.com/tools/bitdefender-gravityzone-extended-email-security) fits if you are a small business. ## Bitdefender GravityZone Extended Email Security vs MailChannels Outbound Filtering FAQ Common questions when comparing Bitdefender GravityZone Extended Email Security vs MailChannels Outbound Filtering for email security platforms. ### What is the difference between Bitdefender GravityZone Extended Email Security and MailChannels Outbound Filtering? **Bitdefender GravityZone Extended Email Security**: Cloud-native email security platform with SEG and API-based protection, built by Bitdefender. **MailChannels Outbound Filtering**: Cloud SMTP relay for hosting providers to filter outbound spam & protect IP reputation, built by MailChannels. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Bitdefender GravityZone Extended Email Security and MailChannels Outbound Filtering? **Bitdefender GravityZone Extended Email Security** is made by Bitdefender. **MailChannels Outbound Filtering** is made by MailChannels. 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 MailChannels Outbound Filtering? Often, yes. Bitdefender GravityZone Extended Email Security and MailChannels Outbound Filtering 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 ESET Cloud Office Security](https://cybersectools.com/compare/bitdefender-gravityzone-extended-email-security-vs-eset-cloud-office-security) - [Bitdefender GravityZone Extended Email Security vs Mesh 365](https://cybersectools.com/compare/bitdefender-gravityzone-extended-email-security-vs-mesh-365) - [Bitdefender GravityZone Extended Email Security vs Cybersentriq MX Email Threat Protection](https://cybersectools.com/compare/bitdefender-gravityzone-extended-email-security-vs-cybersentriq-mx-email-threat-protection) - [MailChannels Outbound Filtering vs ESET Cloud Office Security](https://cybersectools.com/compare/eset-cloud-office-security-vs-mailchannels-outbound-filtering) - [MailChannels Outbound Filtering vs Mesh 365](https://cybersectools.com/compare/mailchannels-outbound-filtering-vs-mesh-365) - [MailChannels Outbound Filtering vs Cybersentriq MX Email Threat Protection](https://cybersectools.com/compare/cybersentriq-mx-email-threat-protection-vs-mailchannels-outbound-filtering) ## Alternatives to each - [See all Bitdefender GravityZone Extended Email Security alternatives](https://cybersectools.com/alternatives/bitdefender-gravityzone-extended-email-security) - [See all MailChannels Outbound Filtering alternatives](https://cybersectools.com/alternatives/mailchannels-outbound-filtering) --- Source: https://cybersectools.com/compare/bitdefender-gravityzone-extended-email-security-vs-mailchannels-outbound-filtering 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 MailChannels Outbound Filtering: 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