Email deliverability
Metrics and transparency around email delivery rates, open rates, and bounce rates in email tools. Every AI Founder Weekly story on email deliverability, newest first. 3 stories since October 2026.
- Marc Lou ships 13 MailCheap features in one go
Custom domains, automatic list cleaning and the end of the 30 day warm-up, all in one post.
- Marc Lou says a 500k-email customer signed MailCheap at $149 MRR
Zero sales calls, and the product is nine days old by his own count.
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- Marc Lou says MailCheap is at three-figure MRR, delivery 99.2%
The vibe-coded beehiiv alternative is days old and the founder is already publishing its deliverability numbers.
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