Custom Domains: End-to-End Fixes & Polish

[mqmalagris]

Summary

Fixes the custom domain feature so premium users can register, verify, and use their own domains for vanity inboxes.

Changes

Custom domain flow now fully working:

• ListUserDomains switched from Scan to GSI Query for reliable lookups
• DNS records (TXT + MX) now returned in the domain list response, not just at registration time
• Auto-check pending domain verification on page load (no manual click required)
• Vanity inbox form now shows verified custom domains in the domain selector
• Processor accepts emails for any registered inbox regardless of domain

Inbox handling fixes:

• Timer no longer renders before expires_at is loaded (fixes false "expired" state on fresh inbox load)
• Reset expired flag when creating new inboxes to prevent stale state
• CanCreateInbox and inbox count now exclude domain/sentinel records

Test plan

• Add custom domain → DNS records appear
• Verify domain → status updates automatically on reload
• Create vanity inbox at name@yourdomain.com → works
• Send email to that address → message arrives
• Inbox count on account page is accurate
• All existing tests pass (14 Go, 27 web)

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Project	Deployment	Actions	Updated (UTC)
ephemask-web	Ready	Preview, Comment	Apr 25, 2026 11:17pm