· 7 min
Booking a meeting over email takes days and several replies, and the agent has nothing to do in between. Mastra's suspend() fits that exactly. Here is a runnable scheduler where code owns the calendar, the model only reads and writes, and a reply wakes the workflow in the same thread.
· 5 min
The OpenAI Agents SDK makes an email tool a decorator away. The hard part is deciding when to send, and making sure the model can only send the one email it was asked for. Here is a runnable follow-up agent where code decides when, the model decides what, and the thread is the only memory.
· 5 min
A workspace quota trips after the damage. A limit on the key trips before it. How a per-key daily cap and recipient allowlist work, why they have to be checked on every path that sends, and why the key can never loosen them itself.
· 7 min
A CrewAI crew can write a request for quotation and read the replies in an afternoon. The hard part is everything around the agents: which vendor wrote, what they actually said, what happens while a person decides, and who is allowed to agree to a deposit. Here is a runnable one on real email.
· 5 min
LangGraph's interrupt makes the person-in-the-loop part easy. The hard parts of an email support agent are on the mailbox side, which is the part every tutorial fakes. Here is a runnable one with a real inbox, and what it has to check before it answers anyone.
· 7 min
An AI agent that reads email can be prompted by anyone who knows its address. What SPF, DKIM and DMARC actually prove, why a forged CEO passes SPF, the guidance we got wrong for our own agents, and what to build instead.
· 9 min
Eight email APIs checked on 11 September 2026 against the questions an agent actually runs into. Does the reply come back as a thread? Can a credential be capped or held? What does it cost at 100,000 emails? Every fact is dated and linked, including the ones that do not flatter us.
· 3 min
A key that drafts instead of sends. How the hold works, what the agent sees, why two reviewers cannot release the same message twice, and the schedule trick that used to walk around it.
· 3 min
One command adds SendRaven to Claude Code. Verify a domain, send, and when the reply comes back, ask what is waiting. Then give the agent a key it cannot hurt you with.
· 5 min
A send is a notification. A conversation needs the answer. Here is what an email API has to do before an agent can read a reply safely, and why most stop one step short.
