| What it does | Automate cold and marketing emails with high deliverability in Gmail
| Autonomous QA agent for email that checks copy, links, images, accessibility and brand guidelines, then issues a certificate anyone can verify
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| Stage | Established
| Startup
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| Founded | 2019
| 2026
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| Based in | US
| CA
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| Pricing model | Paid
| Paid
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| Pricing | Individual plan: $9.99/month or $119.99/year (monthly billed as $9.99USD). Enterprise plan: custom pricing. Both include up to 5 simultaneous campaigns, 4 follow-up sequences, personalized and static attachments, email tracking, unsubscribe links, and email support 7 days a week.
| Team: $299 per Member per month (2 clients, 30 emails); Pro: $988 per month (unlimited clients and emails). One paid Member seat unlocks full team access; Reviewer and Client viewer seats are free on every plan.
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| Key features | - Schedule up to 5 active campaigns simultaneously
- Email sequences of up to 4 follow-ups per campaign
- Personalized attachments from Google Drive
- Real-time email tracking (opens, clicks, replies, bounces, unsubscribed)
- Staggered email delivery to appear from a person
- Send from Gmail aliases
- Cancel active campaigns at any time
- Auto-cancel follow-ups on reply or unsubscribe
| - Copy vs Deck Alignment - reads copy deck and holds email to it line by line in both directions
- Link Validation - opens every URL, follows tracking wrappers to actual landing page, checks destination against deck
- Creative Comparison - checks built email block by block against approved PDF, PNG, JPG or XD
- Real Outlook Rendering - renders every email in real Outlook 365 on Windows in light and dark mode
- Accessibility (WCAG 2.1) - 25 accessibility checks including contrast, alt text, heading structure, reading order
- SendLint Approved Certificates - mints certificate for each email and language with public verification page
- Compliance PDF and Audit Log - keeps every report, check, approval, override and waiver with who, when and reason
- Dynamic content with personalization tokens - placeholders resolve against test values to verify exactly
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| What makes it different | - Only Mail Merge add-on for Google Workspace with simultaneous campaign scheduling and automated follow-ups
- Automatic personalized attachments without manual file permission changes
- Direct support from the creator 7 days a week
- Highest deliverability rate with short tracking URLs
| - Autonomous agent that signs off on emails with verifiable certificates, not just approvals
- Checks whether what you built matches what the client approved, not just how it looks
- Hands each defect to the person who fixes it with exact quotes from deck and email
- Real Outlook rendering on actual Windows machines, not a simulation
- Works with any ESP - takes HTML or .eml you would send from any platform with no setup changes
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 24 ▲ +1 (up) since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 4 | 0 |
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| Citation Flow (Majestic) | 25 | 19 |
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| Referring domains (Majestic) | 48 | 4 |
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Go Mail Merge
SendLint