Groundmail

Proof

Our mail servers, measured live.

We run our own mail servers and own the IP addresses your email leaves from, so we can show you how they're doing right now. Every number here comes from real mail and refreshes on its own.

Live · last 30 days · updated 51 min ago

How fast your email lands

Median, last 30 days

Gmail

5.6s

Outlook and Hotmail

6.6s

Yahoo and AOL

7.7s

Every provider

6.0s

From the moment our API accepts your email to the moment the recipient's mail server accepts it. Test sends and our own monitoring mail are left out.

A real email through the whole system, every day

Last run 5 hours ago

Sent through the public API, checked from the outside

4.0s

API to delivered, latest run

Passed · 5 of 5 checks

  • Delivered to a real inbox
  • Bounce handled
  • Complaint handled
  • Webhook signed and verified
  • Inbound email received

Sending: API, SMTP and delivery

99.98%

Events: webhooks and inbound

100%

Dashboard and docs

100%

Uptime, checked every minute from outside our network. Full history on the status page

Our own IP range

Your mail leaves from IP addresses we own, not ones we rent by the month. We check every one against the major blocklists every day and deal with anything we find ourselves, because we run the servers.

How we measure

Real mail only. Delivery times come from customer email. Test sends, mail to our bounce and complaint simulator, our own daily test and accounts suspended for abuse are left out. Aggregates only: no addresses, no customer names.

No cherry-picking. Medians, not best cases, over the same 30 days for every provider, whatever they say. A provider is matched on the recipient's address.

Check it yourself. These numbers come from the status page's public JSON feed, and the status page keeps the full uptime history.

Send on the same servers.

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