# Mimecast vs Rspamd

| Attribute | Mimecast | Rspamd |
|---|---|---|
| **Vioscale score** | 71.3 (3% (low)) | 45.2 (39% (low)) |
| activity.commits_last_30d | - | 93 |
| adoption.dependent_repos | - | 0 |
| adoption.github_stars | - | 2,514 |
| deployment.options | `{"cloud":true}` | `{"cloud":true,"on_prem":true,"self_hosted":true}` |
| description.long | Mimecast provides cloud-based security services that protect business email and data through archiving, threat detection, and comprehensive risk management solutions for enterprises. | A customizable email security system that deploys at the mail server level to detect and block phishing, malware, spam, and business email compromise attacks. It integrates with standard mail server software and runs on-premises while keeping message content in your environment. |
| features.capabilities | - | `{"pricing_model":"quote","deployment_model":"gateway_mx","outbound_dlp_scanning":false,"bundled_email_encryption":false,"microsoft_365_api_native":false,"dmarc_reporting_enforcement":false,"google_workspace_api_native":false,"bec_impersonation_protection":true,"malware_attachment_sandboxing":true,"post_delivery_inbox_retraction":false,"security_awareness_training_bundled":false}` |
| integrations.count | 300 | 6 |
| integrations.list | `[{"name":"CrowdStrike"},{"name":"Demisto"},{"name":"LogRhythm"},{"name":"Salesforce"},{"name":"Slack"}]` | `[{"name":"Postfix"},{"name":"Exim"},{"name":"Sendmail"},{"name":"ClamAV"},{"name":"Redis"},{"name":"ClickHouse"}]` |
| language.primary | - | C |
| market.availability | `{"hqCountry":"US","primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"cli":true,"linux":true}` |
| pricing | - | `{"type":"hybrid","summary":"Contact sales for pricing. Open-source version available.","freeTier":true,"sourceUrl":"https://rspamd.com/pricing","retrievedAt":"2026-08-21T12:44:02.279Z","billingPeriods":["month","year"]}` |
| pricing.free_tier | - | yes |
| pricing.model | commercial | commercial |
| pricing.price_level | - | low |
| pricing.transparent | - | no |
| release.cadence_days | - | 17 |
| release.history | - | `[{"url":"https://github.com/rspamd/rspamd/releases/tag/4.1.5","date":"2026-08-15T10:52:27Z","type":"stable","version":"4.1.5"},{"url":"https://github.com/rspamd/rspamd/releases/tag/4.1.4","date":"2026-07-29T09:38:18Z","type":"stable","version":"4.1.4"},{"url":"https://github.com/rspamd/rspamd/releases/tag/4.1.3","date":"2026-07-25T19:27:22Z","type":"stable","version":"4.1.3"},{"url":"https://github.com/rspamd/rspamd/releases/tag/4.1.2","date":"2026-07-21T17:54:39Z","type":"stable","version":"4.1.2"},{"url":"https://github.com/rspamd/rspamd/releases/tag/4.1.1","date":"2026-06-19T14:58:37Z","type":"stable","version":"4.1.1"},{"url":"https://github.com/rspamd/rspamd/releases/tag/4.1.0","date":"2026-06-05T11:45:19Z","type":"stable","version":"4.1.0"},{"url":"https://github.com/rspamd/rspamd/releases/tag/4.0.1","date":"2026-04-05T19:31:36Z","type":"stable","version":"4.0.1"},{"url":"https://github.com/rspamd/rspamd/releases/tag/4.0.0","date":"2026-03-30T12:59:16Z","type":"stable","version":"4.0.0"},{"url":"https://github.com/rspamd/rspamd/releases/tag/3.14.2","date":"2025-12-11T11:50:23Z","type":"stable","version":"3.14.2"},{"url":"https://github.com/rspamd/rspamd/releases/tag/3.14.0","date":"2025-11-11T14:08:54Z","type":"stable","version":"3.14.0"},{"url":"https://github.com/rspamd/rspamd/releases/tag/3.13.2","date":"2025-10-14T14:11:38Z","type":"stable","version":"3.13.2"},{"url":"https://github.com/rspamd/rspamd/releases/tag/3.13.1","date":"2025-09-30T10:28:04Z","type":"stable","version":"3.13.1"},{"url":"https://github.com/rspamd/rspamd/releases/tag/3.13.0","date":"2025-09-17T08:01:12Z","type":"stable","version":"3.13.0"},{"url":"https://github.com/rspamd/rspamd/releases/tag/3.12.1","date":"2025-06-17T09:34:17Z","type":"stable","version":"3.12.1"},{"url":"https://github.com/rspamd/rspamd/releases/tag/3.12.0","date":"2025-06-11T18:28:36Z","type":"stable","version":"3.12.0"},{"url":"https://github.com/rspamd/rspamd/releases/tag/3.11.1","date":"2025-03-08T14:14:53Z","type":"stable","version":"3.11.1"},{"url":"https://github.com/rspamd/rspamd/releases/tag/3.11.0","date":"2024-12-16T14:14:15Z","type":"stable","version":"3.11.0"},{"url":"https://github.com/rspamd/rspamd/releases/tag/3.10.2","date":"2024-10-21T07:52:53Z","type":"stable","version":"3.10.2"},{"url":"https://github.com/rspamd/rspamd/releases/tag/3.10.1","date":"2024-10-16T10:34:49Z","type":"stable","version":"3.10.1"},{"url":"https://github.com/rspamd/rspamd/releases/tag/3.10.0","date":"2024-09-30T17:51:03Z","type":"stable","version":"3.10.0"}]` |
| security.scorecard | - | 5 |
| security.vulnerabilities | - | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=helm&package_name=klicktipp%2Frspamd&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Email Security)

| Capability | Mimecast | Rspamd |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Deployment model | - | Gateway mx |
| Bec impersonation protection | - | ✓ |
| Post delivery inbox retraction | - | ✗ |
| Malware attachment sandboxing | - | ✓ |
| Outbound DLP scanning | - | ✗ |
| Bundled email encryption | - | ✗ |
| Dmarc reporting enforcement | - | ✗ |
| Security awareness training bundled | - | ✗ |
| Microsoft 365 API native | - | ✗ |
| Google workspace API native | - | ✗ |
| SOC2 type ii | - | - |
| ISO 27001 | - | - |
| Pricing model | - | Quote |

*Source: Vioscale. Generated 2026-09-01T16:30:33.255Z. "-" = undocumented, not absent.*