AI email agents and deliverability
Recent window: last 5.2 months (2026-04-24 → 2026-09-28), compared with the prior 5.2 months.
These products automate inbox triage, message drafting, outreach campaigns, and sender reputation warmup. They are used by sales reps, growth marketers, and developers building autonomous workflows to boost productivity and inbox placement rates. Unlike traditional email clients or generic CRMs, this cluster specifically centers on AI-driven autonomous drafting and deliverability infrastructure designed for human teams and AI agents alike.
Metrics
- Stage
- forming
- Recent count
- 110
- Prior count
- 12
- Total count
- 134
- Momentum
- 300.00
- Attention
- 0.49
- Crowding
- 0.55
- Concentration
- 0.82
- Opportunity
- 0.53
Opportunity components
- Attention
- 0.49
- Low crowding
- 0.45
- Momentum (normalized)
- 1.00
- Low concentration
- 0.18
Monthly trajectory
Source split
- github
- 7 (0.06)
- hn
- 8 (0.07)
- ph
- 92 (0.84)
- yc
- 3 (0.03)
Dominant source: ph · Divergence: 0.81
Similar themes
- ai agents for business workflows (0.76)
- email infrastructure and inbox utilities (0.54)
- autonomous ai agents for business (0.44)
- social media automation and engagement tools (0.43)
- ai agents for calls and meetings (0.42)
- ai crm and sales automation (0.42)
- task-specific ai agents and assistants (0.39)
- email design, templates, and productivity (0.39)
Members
| Name | Source | Upvotes ▲ | Launched |
|---|---|---|---|
| ReplyGauge | PH | 2 | 2026-09-13 |
| ET Ducky | PH | 2 | 2026-09-30 |
| RelayDesk | PH | 2 | 2026-09-14 |
| PRamatic | PH | 2 | 2026-09-13 |
| Mailbox MCP | PH | 2 | 2026-09-15 |
| NewsletterFit | PH | 2 | 2026-09-15 |
| MailCalm | PH | 2 | 2026-09-15 |
| Talyro | PH | 2 | 2026-09-15 |
| OutlookDog | PH | 2 | 2026-09-15 |
| Pombo | PH | 2 | 2026-09-17 |
| MailBroom | PH | 2 | 2026-09-17 |
| ApiForge — The API lightweight client . | PH | 2 | 2026-09-18 |
| ThreadLine | PH | 2 | 2026-09-20 |
| ScamShield | PH | 2 | 2026-09-23 |
| Milk Truck Mail | PH | 2 | 2026-09-24 |
| MailCraft | PH | 2 | 2026-09-26 |
| Pim Uijttewaal | PH | 2 | 2026-09-27 |
| RowTrigger | PH | 2 | 2026-09-30 |
| Tutti | PH | 2 | 2026-09-30 |
| Free Email Warmup System | PH | 2 | 2026-09-06 |
| ReplyTime | PH | 2 | 2026-09-16 |
| MailWarmupPro | PH | 2 | 2026-09-19 |
| Hivestaff | PH | 2 | 2026-09-22 |
| FormXen | PH | 2 | 2026-09-24 |
| Sequenzy: AI-Native Email Marketing Tool | PH | 3 | 2026-09-13 |
| TabMail 1.8 | PH | 3 | 2026-09-17 |
| CargoMode | PH | 3 | 2026-09-16 |
| VoteShip | PH | 3 | 2026-09-22 |
| Hello Inbox | HN | 5 | 2026-06-04 |
| Mail client optimized for self-hosted email across multiple domains | HN | 5 | 2026-08-20 |
| Foliosio | PH | 6 | 2026-09-17 |
| Captchainbox | HN | 6 | 2026-07-06 |
| AgentMailr | HN | 7 | 2026-03-15 |
| Yonoma | HN | 7 | 2025-11-20 |
| Macro | HN | 8 | 2026-06-15 |
| LeadSnipper | PH | 8 | 2026-09-14 |
| Stop screenshotting competitor emails. AI does the analysis | HN | 8 | 2026-01-21 |
| mailer-releases | GITHUB | 8 | 2026-09-26 |
| Email API benchmarks | HN | 8 | 2026-03-12 |
| Letterbook - AI Customer Support Built for Startups | YC | 9 | 2026-04-15 |
| OH HAI | PH | 9 | 2026-09-24 |
| Robin | PH | 9 | 2026-09-27 |
| MailCat | HN | 9 | 2026-02-21 |
| Easy-ai-ebook-writer-kdp-generator | GITHUB | 11 | 2026-09-09 |
| Sender | GITHUB | 11 | 2026-09-18 |
| Upstream - The first inbox designed for humans and agents | YC | 11 | 2026-06-22 |
| Housecat.com | HN | 15 | 2026-07-22 |
| Sequenzy: AI-Native Email Marketing Tool | PH | 16 | 2026-09-14 |
| jev-gmail-ai-spam-filter-and-labeling | GITHUB | 16 | 2026-09-19 |
| Inbox-pilot | GITHUB | 20 | 2026-09-29 |