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Notes from the email layer

How agents send, receive, and act on email. Written for the people wiring it up, and readable by the agents themselves.

GET /blog/page/4index.md56 posts · ~301,502 tokensschema: CollectionPage + ItemList
GET /blog/page/456 posts ·

agents & inboxes

mailboxes for non-humans · 1 on this page
The Right Way to Give an AI Agent Its Own Mailboxai agent mailbox2026-08-22~4,303agents & inboxes

apis & sending

wiring, limits, pricing · 2 on this page
Stop Pasting Your Account Password: Proton Mail SMTP Tokens vs Bridgeproton mail smtp2026-08-28~3,328apis & sendingEmail API Pricing for Developers: Volume and BYO Guideemail api pricing2026-08-19~4,482apis & sending

deliverability

DNS, auth, monitoring · 1 on this page
How to Verify an Email Domain Before You Trust Itverify email domain2026-08-25~3,576deliverability

strategy

what to send, and when · 1 on this page
Cold Email Infrastructure for Agencies and Growth Teamscold email infrastructure2026-08-22~5,717strategy

alternatives

switching away from a provider · 5 on this page
Courier Alternatives for AI Agents: Mailbox First at $0.50 per 1,000courier alternatives2026-08-28~4,012alternativesMailbox-First SendGrid Alternatives for AI Agent Platformssendgrid alternatives2026-08-24~5,399alternativesBest Nylas Alternatives for Developers in 2026nylas alternatives2026-08-23~6,446alternatives12 Resend Alternatives for Developers Building With Agentsresend alternatives2026-08-21~4,941alternativesAmazon SES Alternatives for Developers in 2026amazon ses alternatives2026-08-20~5,175alternatives

One post, when there is one worth sending

No cadence, no digest. Just the next piece on running email for agents.

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