Cancel your Mixmax subscription by mail
Mixmax deals with cancellations through the post, so the request goes in a letter and the certified-mail receipt is your proof of when. The cancellation address on file for Mixmax is in San Francisco, United States.
Let Postbye cancel Mixmax 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 Mixmax.
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- 3 Mixmax cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Mixmax by mail
Get your account details together
Have the account email, the plan or product name and the invoice or order number from your latest receipt to hand. The details in the letter need to match what Mixmax has on file.
Draft the request
Ask Mixmax to cancel the account, stop all further charges and confirm in writing. Postbye prepares the letter from our English template, with the subject line “Subject: Subscription termination – Mixmax”.
Mail the letter with a receipt
Send the letter to the San Francisco mailing address shown below by certified mail. Keep the tracking number safe.
Keep the delivery receipt
It shows the date Mixmax received your letter. Check your next statement: no Mixmax charge should post after the cancellation date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Mixmax cancellation letter goes
Written requests to Mixmax go to 548 Market St, Suite 60764, San Francisco, CA 94104.
With ZIP 94104, the address sits in California and the letter never leaves the United States postal system.
The letter greets the reader with “To Whom It May Concern,”; your own details sit under the labels Name, Address and E-mail.
Prefer to write it yourself? Use our letter template
Before you cancel Mixmax, check these
- Export or download your data first. Access often ends on the cancellation date.
- 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.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Mixmax 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.
Putting the request in writing means there is a date on file for when you asked, which matters if a charge appears afterwards.
Mixmax cancellation at a glance
- How Mixmax accepts cancellations
- By mailed letter
- Mailing address on file
- Mixmax 548 Market St Suite 60764 San Francisco, CA 94104
- 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
