Cancel your Gmx Promail subscription by mail
For Gmx Promail the route is a written letter: cancellation requests are taken by post, and certified mail shows when yours arrived. Gmx Promail receives written requests in Karlsruhe, Germany.
Let Postbye cancel Gmx Promail 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 Gmx Promail.
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- 2 Gmx Promail cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Gmx Promail by mail
Start with your account details
Before writing, collect the name and email on the account and, if you have one, an account or customer number. Gmx Promail can only act on a request it can match to an account.
Write your request
Gmx Promail is based in Germany, so the letter goes out in German, built from our German template. Subject line: “Betreff: Kündigungsanfrage – [your name]”. It asks for the subscription to end, for further charges to stop and for written confirmation.
Post the letter
Mail the letter by certified mail to the Karlsruhe address in the next section, and keep the tracking number.
Save the tracking record
Delivery confirmation is your evidence that Gmx Promail was asked. Watch the next statement or two for any further Gmx Promail charge.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Gmx Promail cancellation letter goes
Gmx Promail can be reached by post at Brauerstraße 48, 76135 Karlsruhe, Germany.
Postal code 76135 places the address in Baden-Württemberg, Germany.
Your details go in a block headed by Kontoinhaber, Hinterlegte Rechnungsadresse and Hinterlegte E-Mail-Adresse, and the opening line is “Sehr geehrte Damen und Herren,”.
Prefer to write it yourself? Use our letter template
Every address we hold for Gmx Promail, with the envelope wording
Before you cancel Gmx Promail, check these
- Cancelling usually ends access at the end of the period you paid for, so you keep what you paid for until then.
- Use the same name and email as on the account. A mismatch can delay the request.
- Check your next statement: no charge should appear after the cancellation date.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Gmx Promail 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.
How cancelling by mail works
A subscription ends when the company records your request, not when you stop using it, and a letter is the record you can show later.
If a charge shows up after you cancelled, the letter and its receipt are what you put in front of the company or your bank.
Gmx Promail cancellation at a glance
- How Gmx Promail accepts cancellations
- By mailed letter
- Mailing address on file
- Gmx Promail Brauerstraße 48 76135 Karlsruhe Germany
- Country
- Germany
- Letter language
- German (template de)
- Added to the database
- May 19, 2026
- Data last checked
