| What it does | Free, open source email client with mail, calendar, contacts and AI
| DMARC enforcement without blocking your mail
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Open source
| Freemium
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| Pricing | Not given
| Free: 1 domain. Starter: $19/month or $190/year for 3 domains (then $5 each). Business: $49/month or $490/year for 10 domains (then $5 each). Portfolio: $79/month or $790/year for 25 domains (then $4 each). Enterprise: from $399/month for 100+ domains. Pay yearly and get 2 months free.
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| Key features | - Mail over IMAP or POP3 with search by sender, date and attachments
- Calendar with CalDAV sync in day, week, month and year views
- Contacts with CardDAV sync with email, phone, company and birthday fields
- Read receipts showing Delivered, Opened or Bounced status
- AI summaries, replies and questions using your own API key
- Message and reply translation between languages
- Custom signature for each mailbox
- Built-in settings for Gmail, iCloud, Outlook, Yahoo, Fastmail, Zoho, GMX, Yandex and Proton Bridge
- Open source template for building branded mail clients
| - DMARC monitoring with daily reports from mail providers
- Weekly Monday digest showing senders and pass/fail status
- Guided enforcement to move policy from p=none to p=reject
- Hosted DMARC with dashboard-based policy changes
- Automatic rollback if policy step blocks legitimate mail
- Hosted SPF with hourly address resolution
- Hosted MTA-STS with certificate management
- SPF and DKIM cleanup checks from your reports
- Same-day alerts when new senders fail
- Free tools: DMARC, SPF, DKIM checkers and generators
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| What makes it different | - Free and open source under MIT licence with no restrictions on use, modification or resale
- Works with any IMAP or POP3 mailbox including Gmail, iCloud, Outlook and others
- Calendar and contacts integrated in the same window with mail
- Bring your own AI from Anthropic, OpenAI, Google, xAI or Perplexity
- Build your own branded desktop app by customising the open source template
| - Automatic rollback if a step blocks your own email during enforcement
- No DNS edits needed on paid plans with hosted DMARC
- Approval required for each enforcement step to p=reject
- Free plan with no expiry date and one domain included
- MSP features with client groups and scoped access
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 11 ▼ −1 (down) since last check | 21 ● no change since last check |
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| Trust Flow (Majestic) | 2 | 9 |
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| Citation Flow (Majestic) | 28 | 27 |
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| Referring domains (Majestic) | 41 | 27 |
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CitrusMail
DomainCanary