Robotomail has no permanent free plan in our data — its free option is: Developer access varies.

What is the cheapest paid Robotomail plan?

Standard starts at $20/month with 10 inboxes included, then $1 per extra inboxes.

How much does Robotomail cost for 50 inboxes?

At 50 inboxes per month, the cheapest option is Standard at about $60/month before taxes and add-ons.

How is Robotomail billed?

All prices in USD. Monthly inbound caps apply per account; daily per-mailbox send limits protect deliverability. Annual billing offers Save 50% · limited time. Paid plans include a 30-day money-back guarantee. Cancel any time from the dashboard; the plan runs to the end of the paid billing period. Free plan includes 10 sends and 10 receives each calendar month, resetting on the 1st at 00:00 UTC, only between your agent and your verified email. On Free, mail arriving after the receive limit is discarded and not saved. On paid plans, sender and subject remain visible and held bodies unlock when upgrading or when the cap resets. No monthly caps and no overage charges on sending for Growth and Scale plans.

What are the best Robotomail alternatives?

Popular alternatives are AgentMail, Maileroo, Plunk. Compare their plans side by side on this page.

email API pricing

by Robotomail

Official Pricing

Robotomail pricing, plans & costs

Q: How much does Robotomail cost?

Robotomail has 5 plans: Standard ($20/mo, 10 inboxes included, then $1 per inboxe); Free (Custom quote); Starter (Custom quote); Growth (Custom quote); Scale (Custom quote).

Starts at: $20/mo
Free plan: No
Plans: 5
Billed by: inboxes

Plans at a glance

Robotomail plans and prices

Checked against the official pricing page · 2026-10-08

Cost calculator

Robotomail cost calculator

Number of inboxes

Standard estimate

$60/mo

$20/mo, 10 inboxes included, then $1 per inboxe

Estimate covers the main usage meter only; taxes and add-ons are excluded.

Robotomail plans at 50

vs alternatives (cheapest plan)

How much does Robotomail cost per month?


5	$20	Custom	Custom	Custom	Custom
25	$35	Custom	Custom	Custom	Custom
50	$60	Custom	Custom	Custom	Custom
250	$260	Custom	Custom	Custom	Custom
1,000	$1,010	Custom	Custom	Custom	Custom

Standard: $20
Free: Custom
Starter: Custom
Growth: Custom
Scale: Custom

Standard: $35
Free: Custom
Starter: Custom
Growth: Custom
Scale: Custom

Standard: $60
Free: Custom
Starter: Custom
Growth: Custom
Scale: Custom

250

Standard: $260
Free: Custom
Starter: Custom
Growth: Custom
Scale: Custom

1,000

Standard: $1,010
Free: Custom
Starter: Custom
Growth: Custom
Scale: Custom

Cheapest plan per volume highlighted. "—" means the plan does not allow that volume.

Robotomail feature comparison from the official pricing page

Feature	Starter	Growth	Scale
Mailboxes	10	50	200
Monthly sending per mailbox	15,000	Unlimited	Unlimited
Daily per mailbox	500	1,000	2,000
Monthly inbound	2,000	20,000	Unlimited
Custom domains	1	5	Unlimited
Storage	10 GB	25 GB	100 GB
Webhooks	Included	Included	Included
SSE streaming	Included	Included	Included
Dedicated IPs	Not included	Not included	Included
MCP, CLI & API access	Included	Included	Included
Support	Email	Priority	Slack + priority

Mailboxes

Starter: 10
Growth: 50
Scale: 200

Monthly sending per mailbox

Starter: 15,000
Growth: Unlimited
Scale: Unlimited

Daily per mailbox

Starter: 500
Growth: 1,000
Scale: 2,000

Monthly inbound

Starter: 2,000
Growth: 20,000
Scale: Unlimited

Custom domains

Starter: 1
Growth: 5
Scale: Unlimited

Storage

Starter: 10 GB
Growth: 25 GB
Scale: 100 GB

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How Robotomail pricing works

Robotomail offers email infrastructure for AI agents with a permanent free tier and three paid tiers billed monthly or annually (with a limited-time 50% annual discount). Paid plans range from $19 to $199 per month with varying allowances for mailboxes, inbound emails, storage, and custom domains. Paid plans come with a 30-day money-back guarantee and no send overage charges on Growth and Scale plans.

All prices in USD.
Monthly inbound caps apply per account; daily per-mailbox send limits protect deliverability.
Annual billing offers Save 50% · limited time.
Paid plans include a 30-day money-back guarantee.
Cancel any time from the dashboard; the plan runs to the end of the paid billing period.
Free plan includes 10 sends and 10 receives each calendar month, resetting on the 1st at 00:00 UTC, only between your agent and your verified email.
On Free, mail arriving after the receive limit is discarded and not saved. On paid plans, sender and subject remain visible and held bodies unlock when upgrading or when the cap resets.
No monthly caps and no overage charges on sending for Growth and Scale plans.