Why caution:discovered 2026-09-10 · effective date unknown — A free tier still exists, the details have changed. Have their own free tiers but incur costs if limits are exceeded. The auto-delete time is stated as 'several hours' but also 'officially 3 days according to mailgun'. The emphasis on self-hosting and external service costs introduces a new element. Source ↗Full history ↓
A verdict here is not a fixed property of the vendor. A one-off pricing event demotes a vendor while its recorded date falls in the last 180 days and then lapses on its own, with nothing about the vendor having changed; a standing condition — a free tier withdrawn, a product retired — does not lapse with time. This one rests on a record discovered 2026-09-10 · effective date unknown, so it lapses on 2027-03-10 unless we record something new first.
Limits, pricing history. Catalogue date July 2026. Last updated 2026-09-10.
inboxkitten.com's free tier offers Inboxkitten is a free, open-source disposable email service… We rate it caution — one recorded pricing model change, discovered 2026-09-10.
The day we last read the vendor's page. Our last read of it, on 2026-09-10, is where the terms above come from. We hold no confirmation of the terms we publish — the 2026-07-12 beside this date is not one we can source to a read that confirmed them.
Free Tier Details
Inboxkitten is a free, open-source disposable email service. Self-hosting is available for $0/month, but requires Firebase and Mailgun accounts (which have their own free tiers). Emails auto-delete after several hours (officially 3 days according to mailgun).
We read that on 2026-09-10 from https://inboxkitten.com/, and our check recorded: the page names inboxkitten.com as "inboxkitten com" and states "$0".
When You'll Outgrow inboxkitten.com's Free Tier
When your usage exceeds the free tier limits, you'll need to upgrade.
A free tier still exists, the details have changed. Have their own free tiers but incur costs if limits are exceeded. The auto-delete time is stated as 'several hours' but also 'officially 3 days according to mailgun'. The emphasis on self-hosting and external service costs introduces a new element. Source ↗
Before: Free temporary/disposable email inbox, with up to 3-day email auto-deletes. Open source and can be self-hosted.
After: Inboxkitten is a free, open-source disposable email service. Self-hosting is available for $0/month, but requires Firebase and Mailgun accounts (which have their own free tiers). Emails auto-delete after several hours (officially 3 days according to mailgun).
We do not push notifications. Every change we record is readable the moment it lands, and the JSON answer carries an ETag — send it back as If-None-Match and an unchanged answer costs one 304.
Yes, inboxkitten.com offers a free tier: Free. Inboxkitten is a free, open-source disposable email service. Self-hosting is available for $0/month, but requires Firebase and Mailgun accounts (which have their own free tiers). Emails auto-delete af...
What is inboxkitten.com's free tier?
inboxkitten.com's free tier is called "Free". Inboxkitten is a free, open-source disposable email service. Self-hosting is available for $0/month, but requires Firebase and Mailgun accounts (which have their own free tiers). Emails auto-delete after several hours (officially 3 days according to mailgun).
Is inboxkitten.com's free tier reliable?
inboxkitten.com's free tier requires caution because of one specific recorded change, discovered 2026-09-10: A free tier still exists, the details have changed. Have their own free tiers but incur costs if limits are exceeded. The auto-delete time is stated as 'several hours' but also 'officially 3 days according to mailgun'. The emphasis on self-hosting and external service costs introduces a new element. Source: https://inboxkitten.com/
Is inboxkitten.com's free tier good for production?
inboxkitten.com's free tier is usable for prototyping and development, but we rate it caution because of one recorded pricing model change, discovered 2026-09-10. Consider alternatives with more stable pricing for critical services.
What changed in inboxkitten.com's pricing?
inboxkitten.com has had 1 recorded pricing change. Most recently: A free tier still exists, the details have changed. Have their own free tiers but incur costs if limits are exceeded. The auto-delete time is stated as 'several hours' but also 'officially 3 days according to mailgun'. The emphasis on self-hosting and external service costs introduces a new element. Source: https://inboxkitten.com/ (discovered 2026-09-10).
When will I outgrow inboxkitten.com's free tier?
When your usage exceeds the free tier limits, you'll need to upgrade. When you outgrow the free tier, evaluate paid plans against alternatives — sometimes a competitor's free tier covers what you need.
What category is inboxkitten.com in?
inboxkitten.com is categorized under Email on AgentDeals.
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