Bufferapp vs mail.tm
Same instrument, two spec sheets — measured, not claimed.
Bufferapp vs mail.tm: common questions
Which is more reliable, Bufferapp or mail.tm?
On our scheduled checks, Bufferapp leads on measured uptime — Bufferapp at 100% versus mail.tm at 84.3% 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, Bufferapp or mail.tm?
Bufferapp has the lower median latency in our checks — Bufferapp responds in 547 ms versus mail.tm at 709 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 Bufferapp and mail.tm need an API key?
mail.tm needs no key, while Bufferapp requires a free API key. If you want to start calling without signup, reach for mail.tm first.
Can I call Bufferapp and mail.tm from the browser?
Neither sends browser-friendly CORS headers reliably, so call Bufferapp and mail.tm from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are Bufferapp and mail.tm free for commercial use?
Bufferapp has unclear commercial terms, and mail.tm 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.