Cancel your Smilebox subscription by mail
Smilebox deals with cancellations through the post, so the request goes in a letter and the certified-mail receipt is your proof of when. Our database has Smilebox's mailing address in New York, United States.
Let Postbye cancel Smilebox for you
We write your letter, mail it by certified mail the next business day, and confirm when the cancellation went through. You keep the signed proof.
Money-back guarantee within 10 business days.
Postbye is not affiliated with Smilebox.
- 4.8 from 2,931 reviews
- 3 Smilebox cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Smilebox by mail
Start with your account details
Start with the account email, the plan or product name and the invoice or order number from your latest receipt, so the request to Smilebox names the right account the first time.
Set out the request
Your Postbye letter to Smilebox asks for three things: the account closed, no further charges and a written confirmation, all under “Subject: Subscription termination – Smilebox”. It comes from our English template.
Send it by certified mail
Take the letter to the post office and ask for certified delivery to 10173 New York. Keep the tracking number it gives you.
Keep the delivery receipt
Delivery confirmation is your evidence that Smilebox was asked. Watch the next statement or two for any further Smilebox charge.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Smilebox cancellation letter goes
For a letter to Smilebox, use 340 8th Floor Madison Ave, New York, NY 10173.
With ZIP 10173, the address sits in New York and the letter never leaves the United States postal system.
The letter is addressed “To Whom It May Concern,” and its details block uses the labels Name, Address and E-mail.
Prefer to write it yourself? Use our letter template
Every address we hold for Smilebox, with the envelope wording
Before you cancel Smilebox, check these
- Annual plans can charge a cancellation fee or continue to the end of the term. Check the term on your invoice.
- Apps billed by an app store are cancelled in that store. Check which party appears on your statement.
- Team and business plans are billed per seat. Name the plan and the number of seats in the request.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Smilebox for you
We write your letter, mail it by certified mail the next business day, and confirm when the cancellation went through. You keep the signed proof.
Cancelling a software or app subscription
Software plans are billed per plan or per seat, often yearly, and the app store version is billed by the store rather than the developer, so the request has to name the plan and who bills it.
A phone call leaves nothing behind; a letter leaves a copy, a date and a delivery receipt.
Smilebox cancellation at a glance
- How Smilebox accepts cancellations
- By mailed letter
- Mailing address on file
- Smilebox 340 8th Floor Madison Ave New York, NY 10173
- Country
- United States
- Letter language
- English (template en)
- Category (from the company name)
- Software & apps
- Added to the database
- April 30, 2026
- Data last checked
