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SendLetter

ChatGPTby Sendletter

SendLetter helps you prepare and send physical letters from your connected account. Check your sending setup, manage return addresses, validate address formats, calculate a price and preview your letter before deciding to send. You review the recipient, document, mailing options and total before approving a physical mailing. Sending uses your existing account balance; an eligible individual letter can instead be paid for through SendLetter’s website checkout. Follow letter status and cancel only while cancellation is still available. Supported destinations and options depend on the current service. A sandbox account simulates the workflow without charging, printing or posting. SendLetter is operated by Twilper.

Details

Listed Oct 21, 2026
by Sendletter
Version 1.0.0
Lifecycle
  1. First seenNov 5, 2026
    created Oct 21, 2026
  2. PublishedLive in ChatGPT
    last changed Nov 5, 2026
  3. Visible in app store•
  4. Featured•