| What it does | Not given
| Free, open source email client with mail, calendar, contacts and AI
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| Stage | Not given
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| Founded | 2022
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| Based in | Not given
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| Pricing model | Paid
| Open source
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| Pricing | Pay-as-you-go credit packages: $9 for 10,000 credits ($0.0009/email), $39 for 50,000 credits with +20% bonus ($0.00065/email), $59 for 100,000 credits ($0.00059/email), $119 for 250,000 credits ($0.00048/email), $199 for 500,000 credits ($0.0004/email), $599 for 2,500,000 credits ($0.00024/email), $
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| Key features | - Bulk verification up to 1 million emails per file with drag-and-drop CSV, Excel, or TXT upload
- Blocks 100,000+ disposable and temporary email domains
- Seven email status categories: VALID, INVALID, DISPOSABLE, ROLE_ACCOUNT, CATCH_ALL, FULL_INBOX, UNKNOWN
- Non-expiring pay-as-you-go credits with no monthly subscriptions
| - 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
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| What makes it different | - Non-expiring credits with no monthly subscription or forced renewals
- 100% automatic refunds for UNKNOWN verification results—pay only for conclusive verdicts
- Does not send any emails during verification, protecting sender reputation with zero impact
| - 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
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 10 ▲ +2 (up) since last check | 11 ▼ −1 (down) since last check |
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| Trust Flow (Majestic) | 4 | 2 |
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| Citation Flow (Majestic) | 32 | 28 |
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| Referring domains (Majestic) | 77 | 41 |
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MailVeri
CitrusMail