Set up and monitor email warmup with an AI agent

WS
WarmySender Team
Updated Sep 7, 2026

Connect WarmySender to Claude, ChatGPT, Cursor, Codex, OpenClaw or Hermes Agent — or any agent that speaks MCP — and it can turn warmup on for a mailbox, choose its strategy and target volume, apply the same settings across a whole set of mailboxes at once, and read back how each one's reputation is building. What it cannot do is send the warmup mail itself, shorten the ramp, or lift a limit — warmup rises gradually on its own schedule, and nothing an agent can call moves it.

Warmup is the cleanest example of the whole agentic design. Everything an agent touches here is configuration and reporting: which mailboxes are warming, how hard, and how they are doing. The actual warmup mail — the small, growing stream of messages that real inboxes open and reply to — is produced and paced by WarmySender itself, on a ramp an agent has no access to.

What can my agent do with warmup?

Email warmup through a connected AI agent: what it can and cannot do.
Area Your agent can Your agent cannot
Turning warmup on Enable warmup on a mailbox you have already connected, and choose its strategy — a new domain, a new mailbox, steady maintenance, or recovery Turn warmup on for a mailbox that is not connected, or for more mailboxes than your plan includes
Target volume Set the target number of warmup emails a day for a mailbox to grow toward Set a target above the ceiling the strategy allows, or make the mailbox reach it any faster than the ramp
Many mailboxes at once Apply the same warmup settings across a whole set of mailboxes in one go — useful when you connect a batch of new sending addresses Warm mailboxes it cannot see — it only ever works inside your own workspace
Monitoring Read each mailbox's current warmup volume and why it is that number, whether warmup mail is actually arriving, and how reputation is building over time Change any of those numbers by reading them — reporting and control are separate
The ramp Tell you which stage a mailbox is on and when it is expected to reach full speed Shorten the ramp, skip a stage, or push a mailbox past the volume it has earned
Accounts and safeguards Report on mailbox health and flag a mailbox that looks weak Connect or disconnect a mailbox, see a password, or remove the tag that lets you filter warmup mail out of your inbox

Who actually sends the warmup emails?

WarmySender does. When your agent turns warmup on and sets a target, all it has written down is the configuration: "warm this mailbox, this way, toward this number". From that point the warmup itself — sending a few messages, receiving a few, having them opened and replied to across a network of real inboxes — is run entirely by WarmySender, one small step at a time. Your agent scheduled nothing and sent nothing; it set the dial and stepped back.

That is why "warm all twelve of my new mailboxes" is a safe sentence. It does not release twelve mailboxes at volume. It starts twelve gentle ramps, each beginning at a single email a day and climbing on its own schedule.

Can my agent make warmup go faster?

No, and this is the safeguard doing its job. Warmup climbs gradually on purpose: a brand-new mailbox that suddenly sends at volume looks exactly like spam to a receiving provider, so the ramp starts at a single email a day and steps up slowly. Your agent can set the target a mailbox is climbing toward, but it cannot change how quickly the climb happens, and asking again does not move it.

One detail worth knowing, because your agent will report it accurately: the ramp advances on sending days, not calendar days. A mailbox that spent three days disconnected is three days behind where the calendar says it should be — so "why is this mailbox lower than that one" often has the answer "it has had fewer sending days", which your agent can tell you.

For the day-by-day curve and everything that shapes it, see how your warmup daily volume is decided — the canonical explainer. The target most mailboxes grow toward is 40 warmup emails a day by default; the strategy you pick sets the ceiling above that.

How does my agent monitor warmup?

This is where an agent genuinely earns its place, because warmup produces exactly the kind of "is everything fine?" question a person hates to check by hand across a dozen mailboxes. Your agent can read, and explain in a sentence:

So a weekly habit like "check every mailbox's warmup and tell me which ones need attention" is one sentence, and it reads the same data the app shows you — your agent just gathers it for you.

What if warmup slows down or pauses?

Usually it is a safeguard working, not a fault, and your agent can tell you which:

What never happens is a warmup limit being lifted to "fix" a slowdown. The slowdown is the fix — and neither you nor an agent can override it, because overriding it is how a struggling mailbox gets itself blocked.

What should I say?

Frequently asked questions

Can an AI agent set up email warmup for me?

Yes. It can turn warmup on for any mailbox you have already connected, choose its strategy — new domain, new mailbox, steady maintenance or recovery — set the target volume it grows toward, and apply the same settings across a whole batch of mailboxes at once. What it cannot do is send the warmup mail itself; WarmySender runs the warmup on a gradual ramp from there.

Can my agent make warmup finish faster?

No. Warmup climbs gradually on purpose, because a new mailbox that suddenly sends at volume looks like spam to receiving providers. Your agent can set the target a mailbox is heading toward, but it cannot shorten the ramp or skip a stage, and asking again does not move it. The ramp also advances on sending days, not calendar days, so a mailbox that was disconnected for a while is simply a few sending days behind.

Can my agent monitor warmup and tell me if something is wrong?

Yes, and it is one of the most useful things it does. It can read each mailbox's current warmup volume and the reason for it, whether warmup mail is actually arriving on the incoming side, and how reputation is building over time — then tell you in a sentence which mailboxes need attention. A weekly "check all my mailboxes and flag the weak ones" is a single instruction.

Why did my warmup volume drop, and can my agent fix it?

Usually because a safeguard eased a mailbox back: if around 5% of its warmup mail starts landing in spam, WarmySender automatically slows that one mailbox to protect it, judged for each mailbox on its own. Your agent can tell you which mailbox and watch it recover, but it cannot — and should not — lift the slowdown. The slowdown is the fix, and overriding it is how a struggling mailbox gets blocked.

Can my agent connect a mailbox or turn warmup on for a disconnected one?

No. Connecting and reconnecting mailboxes stays in the app, so no credential passes through an agent, and warmup cannot be enabled on a mailbox that is not connected. Your agent can spot a disconnected mailbox and tell you to reconnect it, then turn warmup on once it is back.

Will my agent remove the tag on warmup emails in my inbox?

No, and there is no way for it to. Warmup emails carry a small reference tag in the subject so you can filter them out of your own inbox, and that tag is deliberately outside what any agent can change. Removing it would flood your inbox with warmup mail you could no longer filter, so it stays put no matter what.

Should I keep warmup running once my mailboxes are warmed up?

Yes — leave it on permanently. A steady maintenance level keeps a mailbox's reputation warm without competing much with your real campaigns for the day's budget, and your agent can move a whole set of mailboxes onto maintenance for you in one instruction once they are warmed.

Want a hand planning warmup across a set of new mailboxes? Email [email protected] — we respond within 24 hours on business days.