Inflovy as a MailSlurp alternative
MailSlurp is an API-first “programmable disposable inbox” service known for its long-poll wait-for-email endpoint. Teams look elsewhere when they need a free plan, a proper web inbox for non-developers, or team visibility without the $113/month Team tier.
Last updated September 18, 2026
Who this is for
1Teams where testers and developers both need the inbox
2Developers who want wait without a $19 floor
3Anyone who wants to see the email in a browser, not only in JSON
In short
Inflovy is a MailSlurp alternative that keeps the part developers remember, a wait-for-email endpoint, and adds what MailSlurp lacks: a free plan, a web inbox with the verification code shown on arrival, a Chrome extension, and team access on every plan. Paid plans start at $12/month versus MailSlurp’s $19 Starter and $113 Team (September 2026).
Why people look for a MailSlurp alternative
No free plan; Starter is $19/month and Team is $113/month (September 2026).
API-only in spirit: the web UI is minimal and not meant for a QA tester reading emails by hand.
No way to share inboxes with non-technical teammates without the Team tier.
What Inflovy keeps and what it adds
Keeps: a wait endpoint (GET /v1/inboxes/:id/messages/wait?timeout=1..60) that returns within ~2 s of arrival.
Adds: a free plan with 10 inboxes and 3 members; team visibility on every plan.
Adds: a web inbox with the code as a copy chip, plus a Chrome extension.
Adds: an instant inbox on the homepage that needs no account.
MailSlurp versus Inflovy.
Pricing from vendor pages, September 2026.
| Need | MailSlurp | Inflovy |
|---|---|---|
| Free plan | No; trial only. | Yes: 10 inboxes, 3 members. |
| Entry price | $19/month (Starter). | $12/month (Pro) with API; $0 without. |
| Team tier | $113/month. | $39/month: 500 inboxes, 15 members, 90-day retention, webhooks. |
| Wait-for-email | Yes, the feature it is known for. | Yes, same idea: long-poll, since marker, timeout result. |
| SDKs | Many languages. | REST only; samples for Playwright, Cypress and curl. |
| Human inbox | Minimal. | Full web inbox, search, project grouping, extension. |
| Sending email | Yes. | No, receive-only by design. |
Who should pick which
Stay with MailSlurp if
- You need to send email from test inboxes, not only receive
- You want an official SDK in your language
- Nobody on the team will ever open a web inbox
Choose Inflovy if
- Testers and developers share the same inboxes
- You want a free plan and a $12 step, not $19 and $113
- You want the OTP visible in the browser and pasted by an extension
Questions people ask before switching.
Short answers. Inflovy is a receive-only test inbox for developers and QA teams; it does not replace your mailbox or send anything.
Does Inflovy have a wait endpoint like MailSlurp?
Yes. GET /v1/inboxes/:id/messages/wait?timeout=30&since=<id|iso> holds the request open and returns the first new message within about two seconds of arrival, or { status: "timeout" } after the timeout.
Can Inflovy send email?
No. Every Inflovy address is receive-only, which is why it is safe to share with a whole team. If your tests must send mail, MailSlurp or an SMTP sandbox is the right tool for that part.
Is there an SDK?
Not yet. The API is plain REST with a bearer key; the Playwright and Cypress samples are under 15 lines each.
Related guides
Nearby workflows and comparisons, so you can evaluate the right one without guessing.
Same wait endpoint. Free to start.
Create a workspace and an API key, or try an instant inbox on the homepage first.