| What it does | Open-source cold email and warmup platform
| Cold email that knows when to stop, slow down, follow up, switch inboxes and back off
|
|---|
| Stage | Startup
| Not given
|
|---|
| Founded | 2024
| Not given
|
|---|
| Based in | GB
| Not given
|
|---|
| Pricing model | Freemium
| Freemium
|
|---|
| Pricing | Not given
| Trial: Free for 7 days (1 connected mailbox, 600 email sends/month, 200 contacts, 1 team member). Starter: $29/month (unlimited connected mailboxes, 7,500 email sends/month, 2,000 contacts, 1 team member). Growth: $39/month (unlimited connected mailboxes, 40,000 email sends/month, 15,000 contacts, 3
|
|---|
| Key features | - Mailbox warmup with automatic reputation building
- Campaign sequences with A/B testing
- Unified inbox with reply classification
- Deliverability tracking and inbox placement tests
- Automation workflows with conditional logic
- Per-mailbox safety caps and throttling
| - Automated multi-step email sequences with configurable wait days
- Self-balancing sender rotation across multiple connected mailboxes
- Automatic reply detection to stop follow-ups when prospects respond
- Pre-launch validation checks for contacts, senders and quotas
- Campaign analytics tracking sent, replies, bounces, opens, clicks and unsubscribes
- Safe Mode ramp-up for gradual mailbox warm-up over ten days
- Hard bounce and unsubscribe suppression across entire workspace
- Support for Gmail, Outlook and custom SMTP connections
- AI-assisted email drafting for openers and follow-ups
- CSV contact import with format, duplicate and field validation
|
|---|
| What makes it different | - Fully open-source codebase under Apache 2.0, readable on GitHub
- Self-hostable with one command or cloud-hosted options
- Unlimited mailboxes on paid plans, no per-mailbox fees
- Transparent health rules with full explanations for throttling
- Built in public with public changelog and no inflated metrics
| - No per-mailbox fees on paid plans, only charges for sends and contacts
- Automatic guardrails that pause campaigns when bounce rates exceed threshold or providers throttle
- Honest about deliverability with no guarantees, emphasizing user control and visibility
- Unified workspace managing sequences, rotation, contacts and analytics without unnecessary complexity
|
|---|
| Community votes | 0 | 0 |
|---|
| DR (Domain Rating by Ahrefs) | 26 ● no change since last check | Not checked yet ● no change since last check |
|---|
| Trust Flow (Majestic) | 0 | 0 |
|---|
| Citation Flow (Majestic) | 28 | 18 |
|---|
| Referring domains (Majestic) | 44 | 2 |
|---|
Warmbly
MailQV