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mail.tm vs Tumblr

Same instrument, two spec sheets — measured, not claimed.

APImail.tmHEALTHY82TumblrREACHABLE100
Uptime · 30d
Uptime · 90d84.3%100%
Uptime · 30d75.0%100%
P50 · ms709208
P95 · ms23511101
Authnoneoauth
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — temporary mailboxesOAuth — some read routes may be public
Rate limitRate limited (429 on exceed); exact policy per docs.mail.tmUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

mail.tm vs Tumblr: common questions

Which is more reliable, mail.tm or Tumblr?

On our scheduled checks, Tumblr leads on measured uptime — mail.tm at 84.3% versus Tumblr at 100% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, mail.tm or Tumblr?

Tumblr has the lower median latency in our checks — mail.tm responds in 709 ms versus Tumblr at 208 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do mail.tm and Tumblr need an API key?

mail.tm needs no key, while Tumblr requires OAuth. If you want to start calling without signup, reach for mail.tm first.

Can I call mail.tm and Tumblr from the browser?

Only Tumblr is browser-friendly — it returns CORS headers over HTTPS. mail.tm needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are mail.tm and Tumblr free for commercial use?

mail.tm has unclear commercial terms, and Tumblr has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.