🧩 Web3 SaaS still needs good email infrastructure
Wallet-based auth can remove passwords, but it doesn't remove the need for email.
Most Web3 SaaS products still rely on email for things like:
• account and security alerts
• team invitations
• billing and payment notifications
• API key changes
• failed jobs or transactions
• product updates
• support communication
The mistake is treating email as an afterthought.
For a Web3 SaaS, your email stack should ideally:
→ support API-based sending
→ expose delivery and bounce events
→ let you control your sending domain
→ make authentication like DKIM/SPF/DMARC straightforward
→ avoid forcing your team into unnecessary payment or billing friction
→ scale with transactional usage instead of requiring large fixed plans
Crypto-native payments can also matter more than they seem. If your company operates primarily in USDC or crypto, paying infrastructure vendors without converting funds or using a corporate card can simplify operations.
That was one of the reasons we built Postwing with USDC payments alongside standard developer email infrastructure.
https://postwing.app
August 10, 2026 4
