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Contactsupport@mail.sumidata.io

A real human,
at the other end.

Have a question, hit a bug, or want to share feedback? Email us — the founder reads every message and replies within a business day. No tier-1 chatbots, no canned responses.

< 24hmedian response
1 inboxfounder reads it all
Mon–Fri09:00–19:00 UTC
PriorityScale plan · 4h SLA
02 · Response

What "we'll get back to you"
actually means.

Three tiers, no mystery. Targets are conservative — the real numbers are usually faster, and we'll tell you when something is taking longer than it should.

Standard
< 24h
Free and Team plans. Median first response is well under a day on weekdays — most replies hit your inbox the same morning.
Priority
< 4h
Scale plan customers route to a private channel with the founding team. Faster turnaround, named owner, postmortems by default.
Critical
Live
Production-down? Email with "URGENT" in the subject and your tenant ID. We page on-call directly — average resolution under an hour.
03 · Company

Where the paperwork lives.

Sumidata LLC is a Delaware-registered company. For invoices, refund requests, vendor onboarding, or anything that needs an address on it — start here.

General inbox
support@mail.sumidata.io
For everything except legal & compliance
Registered office
Sumidata LLC
8 The Green, Suite R
Dover, DE 19901, USA
State of Delaware · Reg. agent on file
Refund requests
Email with the subject Refund Request and your account email.
See the refund policy for eligibility details.
Compliance
ISO 27001 · GDPR · DPA available on request.
See the privacy policy or email for a signed DPA.
Still have questions?

Send us the
weirdest one you've got.

If your assistant can't answer a question you care about within an hour of setup, we'll help you write the query — and refund the month anyway.