myagent.mxBLOG

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/3index.md91 posts · ~446,316 tokensschema: CollectionPage + ItemList
GET /blog/page/391 posts ·

agents & inboxes

mailboxes for non-humans · 2 on this page
Email Alias vs Mailbox for Developers: Why Agents Need Real Mailboxesmailbox per customer2026-10-12~4,186agents & inboxesProton IMAP Bridge: Sendmux Agent Mail Needs No Desktop Appprotonmail bridge imap2026-10-09~1,711agents & inboxes

apis & sending

wiring, limits, pricing · 4 on this page
HTTP Idempotency Keys for API Developers: Handle 400, 409, 422idempotency key email2026-10-10~4,517apis & sending5 Step Checklist for Developers Sending Email With Microsoft Graphmicrosoft graph send email2026-10-05~3,029apis & sendingMailbox First Inbound Email Parsing API for Developers via Sendmuxinbound email parsing api2026-10-04~3,405apis & sendingOne day spike: 4 metrics to pick SSE or WebSockets for developerssse vs websockets2026-10-03~3,385apis & sending

deliverability

DNS, auth, monitoring · 4 on this page
SMTP Port 2525 for Developers: 4 Ports, One Fallback for Agent MailSMTP server settings2026-10-11~3,598deliverabilityInbound MX Records for Developers: Test Mail Without DNS Changesconfigure MX records for inbound2026-10-08~3,557deliverability6 Steps to Reproduce and Fix SMTP 550 Blocked for Developerssmtp 550 issue2026-10-07~3,515deliverabilityMTA‑STS for Sysadmins: 2‑Week TLS‑RPT Run, DNS, Policy, API‑First Fixesmta sts setup2026-10-06~3,948deliverability

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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