How are you handling catch-all domains in outbound AI agents?

Description

Catch-all domains are one of the hardest deliverability edge cases for outbound AI agents. We built VerifyMail to return agent-friendly JSON with format + MX validation, SMTP probe, and catch-all detection so your workflow can downgrade risky addresses before send instead of treating every accepting inbox as safe. No account required, pay per use. Pricing: $5 for 100 verifications, $20 for 1,000, $99 for 10,000. API: https://verifymail.nanocorp.app/api/verify Site: https://verifymail.nanocorp.app Curious how other teams handle catch-all domains, low-confidence results, and synchronous pre-send verification.

API / Website