Inbound review (2026): is it worth $9 a month?
Email API for receiving, parsing and replying, with sending
Black Friday: is there a Inbound sale?
Inbound report card
Weak · out of 4.0 · graded Nov 13, 2026
Best for receiving and replying to email by API
Inbound is an email API for receiving, parsing and replying, with sending added, from $9 a month for 5,000 emails. There is no free plan or trial, and the pricing page says nothing about bulk or marketing sends.
Who Inbound is for
- Fits if your app needs to receive and answer incoming email
- Works for developers who want email handled by webhook
Who Inbound is not for
- Skip it if you want to try it free, since no free plan or trial is listed
- Not for you if you send marketing or bulk email, which the page does not describe
- Tight if you run many domains, with 50 on the $15 plan and $3.50 for each extra
- Watch out: extra capacity is $16 per 50,000 received plus 50,000 sent a month
Why Inbound gets a 1.8
Five grades, each with its reason. The GPA is their average: an A is 4 points, an F is none.
- BValue for money$9 a month for 5,000 emails is at the edge of the cheaper quarter of email tools. Extra domains are $3.50 each and extra capacity $16 per 50,000.
- FFree plan and trialNo free plan and no trial are listed, so every email is paid for from the first one.
- CFeaturesEmail to webhook, address routing, threaded replies, API and CLI, spam filtering and retries. It does that narrow job fully, and does not describe bulk sending.
- CEase of useNo rating on record. It is an API and CLI product, so setup means DNS, webhooks and code.
- CPlatforms and integrationsWeb dashboard, API and CLI only. No integrations list is shown.
What these grades rest on. Graded from this listing, whose facts were read from Exon Enterprise LLC's own pages on 13 November 2026. Not based on using the product, and shorter than our full reviews. How we review and grade.
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<a href="https://toolgpa.com/tools/inbound#review"><img src="https://toolgpa.com/badge/inbound.svg" alt="Inbound: 1.8 GPA on ToolGPA" width="196" height="56"></a>Where Inbound stands among email sending services
Inbound's GPA of 1.8 is higher than 4 of the 50 other email sending services we grade, and level with 4.
It stands best on value for money (B, above 25 of 50) and worst on free plan and trial (F, above 0).
Its paid plans start at $9 a month, against a middle price of $15 for the category: 10 of the 41 others that charge start lower.
On features, ease of use and platforms it scores 2.0 out of 4. 8 tools score higher and cost less.
Each grade against the category
Every bar is all 51 email sending services we grade, cut by the letter each got. Inbound’s own letter is outlined.
- BValue for moneyAbove 25 of 50, level with 18
- FFree plan and trialAbove 0 of 50, level with 7
- CFeaturesAbove 0 of 50, level with 29
- CEase of useAbove 7 of 50, level with 43
- CPlatforms and integrationsAbove 0 of 50, level with 16
Price against what you get
Each dot is one of 44 email sending services. Further left costs less, and higher up scores better on features, ease of use and platforms. Point at a dot to see which tool it is.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Keep Inbound, or make your own?
Keep it
To replace Inbound you would be making mail servers with a good name among inbox providers. That is not a weekend's work, with an AI app builder or without one.
That makes this kind of software worth paying for, not this one in particular: 42 of the 50 other email sending services grade higher. It costs $108 a year.
What you could not
- Mail servers with a good name among inbox providers.
- An AI agent, with the models and the safeguards behind it.
- An API that other software can build on.
What this rests on. Inbound’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
What is Inbound?
Inbound is an email API aimed at developers and AI agents. It receives mail on your own domain, parses it to JSON, routes addresses to endpoints and lets code reply in the same thread. Every plan includes unlimited mailboxes, and plans differ by monthly email volume and domain count.
Worth knowing
- There is no free plan or trial listed.
- Extra domains cost $3.50 per domain per month.
- Extra capacity is $16 per 50,000 received plus 50,000 sent a month.
- The product centers on receiving and replying; the pricing page does not describe bulk or marketing sending.
Key features
- Email to webhook
- Point MX records at the service and received mail is delivered as parsed JSON.
- Address routing
- Route specific addresses or a catch-all to different endpoints.
- Threaded replies
- Reply to a received message in the same thread from the API.
- API and CLI
- One API and a command-line tool cover receiving, parsing and replying.
- Spam filtering
- Choose to reject, flag or accept mail marked as spam.
- Failed delivery retries
- Failed webhook deliveries show in logs and can be retried.
Inbound pricing
As of Nov 13, 2026, Inbound is a paid product, starting at $9 per month for 5,000 emails.
- Starts at
- $9 per month for 5,000 emails
- Free plan
- None
- Free trial
- None listed
| Plan | Price | What you get |
|---|---|---|
| Default | $9per month for up to 5,000 emails | Basic support, with unlimited mailboxes. |
| Pro | $15per month for up to 50,000 emails | Up to 50 domains. |
| Growth | $39per month for up to 100,000 emails | Up to 300 domains. |
| Scale | $79per month for up to 200,000 emails | Unlimited domains. |
Read from inbound.new on Nov 13, 2026. Prices change, so confirm with Inbound before you buy.
Inbound alternatives
- Inbound vs Resend
Free plan · from $20/mo
- Inbound vs Postmark
Free plan · from $15/mo
- Inbound vs Mailgun
Free plan · from $15/mo
- Inbound vs Twilio SendGrid
Free trial · from $19.95/mo
- Inbound vs MailPace
Free trial · from $10/mo
Common questions
Does Inbound have an Android app?
No Android app was listed when its pages were read on Nov 13, 2026. Inbound is listed for Web.
Does Inbound have an iPhone app?
No iPhone app was listed when its pages were read on Nov 13, 2026. Inbound is listed for Web.
Is Inbound open source?
Inbound is not described as open source on its own site, as read on Nov 13, 2026.
Does Inbound have an API?
Yes. Inbound offers a public API, according to its own site.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Nov 13, 2026.