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How does this differentiate from a solution like AWS SES? (Which I assume AI Agents would be quite adept at using to send email)

I understand the differentiator vs GMail, but API-based scripted email access isn’t new.

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Because we built the same inbox infrastructure as Gmail. Inboxes have threads, threads have messages, messages have attachments. You can search, label, filter, reply, forward. None of this comes out of the box with SES.

I didn't get it until you said this

Couldn't someone just ask Claude Code to make an email system with threads/messages and handle attachments?

Doesn't seem like a particularly difficult problem to solve.

Harder than you would expect! Since we tried this ourselves before switching to Agentmail. Threads, attachments, ccing, DNS management, sending to gmail vs outlook vs yahoo, etc. It add up to be a major pain.

The new HN “but why pay for this if I could build this in a weekend”!

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