What we keep, and why.

Last updated Oct 22, 2026

Who we are

Stampwork runs stampwork.co and the Stampwork Mailroom. Contact: hello@stampwork.co.

Shops and Stampwork

Stampwork is a service provider to local shops. Each shop owns its subscriber list and is responsible for having its subscribers’ permission. We store and send for the shop; we don’t use a shop’s list for anything else.

What we store

• Shop owners: sign-in email, shop details you enter (name, address, hours, logo, reply-to email and similar), your plan, purchase records from checkout (email and plan), your newsletter drafts and send history (subject, status and counts).
• Subscribers who join through a shop’s join page or are added by the shop: email address; when permission was given; how they joined (for example QR code, web link, import or added by the shop); any optional interests they picked (New items, Deals, Events); and when they unsubscribed, if they did. We don’t currently store the exact wording of the permission text.
• Phone numbers and text-message permission: stored only if provided. Our forms don’t ask for a phone number today.
• Sign-up protection: join attempts are logged with a one-way hashed IP address, not the IP itself, to limit abuse.
• Chat and support: messages you send through the chat widget or help form, the email you give, the page you were on, your browser’s user agent (help form) and a hashed IP address.
• Contact form and email: whatever you write to us.

How we use it

To run the service: deliver a shop’s newsletters to its subscribers, honor unsubscribes, show shop owners their own list and counts, answer questions and handle purchases.

Services we use

• Supabase: database, sign-in and server functions (including the chat widget and help form).
• Brevo: sends our email, including shop newsletters and service emails.
• Stripe: payments. Card details go to Stripe, not to us.
• Mailchimp: the shop list sign-up form on our Join a list page sends your name, email and chosen shops to Mailchimp.
• FormSubmit: delivers messages from our contact form to our inbox.
• ImprovMX: forwards email sent to hello@stampwork.co to our mailbox.
• here.now: hosts the website.
• Google Analytics: see below.

Analytics

We use Google Analytics on our public marketing pages to see how people find and use the site. It is not used in the Mailroom, on business setup or on shop join pages.

No selling

We don’t sell personal data, and we don’t share subscribers’ information with other shops or advertisers.

Unsubscribing

Every newsletter has an unsubscribe link. One click stops that shop’s newsletter.

Text messages

If a shop sends texts through Stampwork, texts go only to people who gave that shop permission. Reply STOP to opt out or HELP for help; message and data rates may apply. Phone numbers and text-message permission aren’t shared with third parties for their marketing. See the text message terms.

Access and deletion

To see or delete your data, write hello@stampwork.co from the email address involved. Subscribers can also ask the shop directly.

If someone texts STOP and is later deleted, we keep a one-way hash of their number, the opt-out time and the shop, so they aren’t texted again. New explicit consent clears it.

Changes

If we change this policy, we’ll post the new version here with a new date.

Last updated Oct 22, 2026. Questions? hello@stampwork.co