The Developer API for nonprofits

A nonprofit depends on people who chose to support it, so every email has to be worth opening. It needs to welcome new supporters, keep them informed, and thank donors promptly.

  • A warm welcome for new supporters
  • Updates people want to read
  • Thank-you emails after every gift
With the Developer API

Donation receipts from your donation form

  • Thank donors right away

    Your donation form's server sends the thank-you and receipt with one API call when the gift goes through.

    How it works
  • One receipt per gift

    Use the donation's id as the `Idempotency-Key`, so a retry never sends a second receipt.

    How it works
  • Supporter lists through the API

    Add supporters to segments from your own systems and send broadcasts to them.

    How it works
Also in your account

Where the other products fit

iResendly Marketing

Keep supporters close, from the first email onwards

  • Welcome series. When someone signs up, a short sequence explains what you do and how they can help, spaced over days or weeks.
  • Appeals and updates. Send campaigns to lists or segments, and see opens and clicks from real readers, with bots and image proxies left out.
  • The same story on social. Publish your update to Facebook, Instagram, LinkedIn and more from the same account.
Nonprofits with iResendly Marketing
iResendly Mail

Addresses for volunteers, partners and the press

  • volunteers@ and press@. Free aliases on the right person's mailbox; change who receives them as roles change.
  • Forward to a volunteer's own address. A mailbox can forward new mail to one outside address and keep a copy if you choose.
  • Pay per mailbox. Aliases are free, so a small team can run many addresses on a few mailboxes.
Nonprofits with iResendly Mail