Terms of Service

Last updated November 9, 2026

GoLetter is a service of TandemTek (“we”, “us”), reachable at tandem-tek.com. By creating an account or using GoLetter, you agree to these terms.

What GoLetter does

You upload a mailing list and write a letter. GoLetter merges them into personalized letters. You can either download the letters to print and mail yourself, for free, or pay us to have them printed and sent by USPS First-Class Mail through our print and mail partner.

Your account

You sign in with a link sent to your email address. Keep access to that email secure, because anyone who can read it can sign in as you. You must be at least 18 and able to enter into a contract to use GoLetter.

Your letters and lists

You are responsible for what you send and who you send it to. By using GoLetter you confirm that:

• you have the right to use the names and addresses in your list;
• your letters are truthful, lawful, and follow the rules that apply to your industry, including real estate and solicitation rules where you operate;
• you will honor requests from recipients who ask you to stop mailing them;
• you won’t use GoLetter to harass, threaten, defraud, or mislead anyone, or to send anything USPS doesn’t allow.

We may refuse or stop any mailing that we reasonably believe breaks these rules, and close accounts that misuse the service.

Prices and payment

The price per letter and the total are shown before you pay. Payment is taken through Stripe when you place an order. Prices include printing, an envelope, and First-Class postage for a standard letter. We may change prices for future orders; an order you’ve already paid for keeps its price.

Printing and delivery

Paid orders are sent to print shortly after payment. Delivery is handled by the US Postal Service, so we can’t guarantee delivery dates or that every letter arrives. Before printing, each address is checked against Postal Service data, and letters to addresses that can’t be delivered are not sent. See our Refund policy for what happens then.

Free self-print

Downloaded letters, labels, and address lists are provided as-is. You are responsible for printing, postage, and mailing them.

Your data

We use your mailing lists and letters only to prepare and send your orders and to show your order history. We don’t sell your data or use your lists for our own marketing. To have your account and order records deleted, contact us at the address below.

Limits on our liability

GoLetter is provided “as is.” To the extent the law allows, we aren’t liable for indirect or consequential losses, such as lost deals or profits, and our total liability for any claim is limited to the amount you paid for the order involved.

Changes to these terms

We may update these terms. If we make significant changes, we’ll note the new date at the top of this page. Using GoLetter after a change means you accept the updated terms.

Governing law

These terms are governed by the laws of the State of Connecticut.

Contact

Questions or requests: [SUPPORT EMAIL] · tandem-tek.com