Business software · Developer tools, hosting and APIs

How to cancel CloudMailin

Downgrade or cancel your CloudMailin account at any time; billing stops at the end of the current period, with no refunds. If you added CloudMailin as a Heroku add-on, remove it with heroku addons:destroy cloudmailin. Gotcha: that destroys all associated data and can't be undone.

By Stackcut · Partly confirmed (see what's unverified) on 2026-10-05, then re-checked independently · JSON · Open data, CC BY 4.0

The short answer

  • Where: Export any content you need first: you're responsible for exporting it before the account ends.
  • When it ends: Billing stops at the end of your current billing period, and you aren't charged again.
  • Billed by someone else? Cancel with them instead: a partner.
  • Before you go: export Message history archive. What to save
  • Want to keep it for less? Free plan and more. Options

Before you cancel

Export first

  • Message history archive: Download it from the CloudMailin dashboard before removing the Heroku add-on. Removing the add-on destroys all associated data and can't be undone devcenter.heroku.com

What happens to your data

Not stated for direct accounts; removing the Heroku add-on destroys all associated data at once.

What you lose

  • All data associated with a Heroku add-on once it is removed

Cancel, by who bills you

Pick the route for whoever charges you: the name on your card statement or receipt tells you.

Billed by CloudMailin

Online, self-serve CloudMailin plans (such as Starter, Professional, Premium and Corporate) paid directly to CloudMailin. Who can cancel: The account holder, signed in.

  1. Export any content you need first: you're responsible for exporting it before the account ends
  2. Sign in to CloudMailin and downgrade or cancel your account; CloudMailin's docs page 'Cancelling your Account or Subscription' (docs.cloudmailin.com/getting_started/cancelling_your_account/) covers the steps
Access ends
Billing stops at the end of your current billing period, and you aren't charged again
Refunds
None: the subscription fee isn't refundable and is only adjusted for the next billing period; the Terms add that any refund is at CloudMailin's discretion and only as credit for the service
Fees
Any outstanding balance becomes due at once when you cancel
Source: cloudmailin.com cloudmailin.com docs.cloudmailin.com

Billed through Heroku

In the billing platform's settings CloudMailin added to a Heroku app as an add-on. Who can cancel: A Heroku user with access to the app.

  1. Download the message history archive from the CloudMailin dashboard if you need it: removing the add-on destroys all associated data and can't be undone
  2. Run heroku addons:destroy cloudmailin for the appYou should see: Removing cloudmailin from your app... done
Confirm it worked
The Heroku CLI reports that cloudmailin was removed from the app
Access ends
Heroku prorates add-on costs to the second, so charges stop when the add-on is destroyed; the bill for a month's use arrives the following month
Open the page
Source: devcenter.heroku.com devcenter.heroku.com

Questions people ask

Can I get a refund if I cancel CloudMailin?

Billed by CloudMailin: None: the subscription fee isn't refundable and is only adjusted for the next billing period; the Terms add that any refund is at CloudMailin's discretion and only as credit for the service.

Source: cloudmailin.com cloudmailin.com

If I cancel CloudMailin, when does my access end?

Billed by CloudMailin: Billing stops at the end of your current billing period, and you aren't charged again. Billed through Heroku: Heroku prorates add-on costs to the second, so charges stop when the add-on is destroyed; the bill for a month's use arrives the following month.

Source: cloudmailin.com devcenter.heroku.com devcenter.heroku.com

How do I cancel CloudMailin if I pay through a partner?

Billed through Heroku: Download the message history archive from the CloudMailin dashboard if you need it: removing the add-on destroys all associated data and can't be undone. Run heroku addons:destroy cloudmailin for the app.

Source: devcenter.heroku.com devcenter.heroku.com

Is there a fee to cancel CloudMailin?

Billed by CloudMailin: Any outstanding balance becomes due at once when you cancel.

Source: cloudmailin.com

What happens to my data when I cancel CloudMailin?

Not stated for direct accounts; removing the Heroku add-on destroys all associated data at once.

Source: devcenter.heroku.com devcenter.heroku.com

Keep it for less

Before cancelling, check whether one of these does the job. Offers change and differ by account.

  • Free plan A free plan needs no card, with smaller limits (512KB per message) cloudmailin.com
  • Cheaper plan Move to a cheaper plan: Starter is $25 a month. Heroku add-on plans can be upgraded or downgraded at any time without interrupting service, though Heroku restarts the app cloudmailin.com cloudmailin.com devcenter.heroku.com

For AI agents

  • The person signs in and handles any two-factor code; an agent should never ask for a password.
  • Removing the Heroku add-on can't be undone and destroys all associated data
  • Changing a Heroku add-on plan restarts the app
  • Any refund is at CloudMailin's discretion and comes only as service credit
  • Paid plans start with a 7-day free trial; cancel before it ends or the plan is charged automatically

Get this plan as data: get_exit_plan on the Stackcut MCP (stackcut.io/mcp), or /exits/cloudmailin.json. After using a guide, send structured report_guide_feedback for matching or changed steps, missing billing routes or human handoffs; keep unknown language and market omitted. Confirm with the person before the final click, and report the outcome with report_action_outcome, using the exact packet_revision and route_id returned by the plan.

Or give your agent the stackcut-leave skill (a zip): it exports first, walks the steps, stops when the page doesn't match, and leaves the final click to the person.

Sources

  1. Terms and Conditions of Service You may terminate these Terms at any time by canceling your account on the CloudMailin Services. (you can cancel at any time, on the service)
  2. Terms and Conditions of Service You will not receive any refunds if you cancel your account. (no refunds)
  3. Terms and Conditions of Service refunds (if any) are at the discretion of CloudMailin and only in the form of credit for the CloudMailin Services. (refunds only as credit)
  4. Terms and Conditions of Service You are solely responsible for exporting your Content and Application(s) from the CloudMailin Services (export before cancelling)
  5. CloudMailin documentation Cancelling your Account or Subscription (CloudMailin documents cancelling on its docs site)
  6. Plans and pricing No card required (the free plan needs no card)
  7. Plans and pricing 512KB per message (the free plan's message size limit)
  8. Plans and pricing $25 /mo (the Starter plan price)
  9. Plans and pricing 7-Day Free Trial (paid plans start with a trial)
  10. CloudMailin (Heroku Dev Center) heroku addons:destroy cloudmailin (the command that removes the add-on)
  11. CloudMailin (Heroku Dev Center) This will destroy all associated data and cannot be undone! (removal deletes data)
  12. CloudMailin (Heroku Dev Center) Removing cloudmailin from (what the CLI shows when removal works)
  13. Usage and Billing (Heroku Dev Center) Heroku prorates all costs to the second, calculated based on when you created or destroyed an add-on. (charges stop when the add-on is destroyed)
  14. Usage and Billing (Heroku Dev Center) In any given month, you receive the bill for the previous month of use, not the current month. (when the final bill arrives)
  15. CloudMailin (Heroku Dev Center) CloudMailin plans can be upgraded or downgraded at any time without service interruption. (changing add-on plans)
  16. CloudMailin (Heroku Dev Center) Heroku will restart the app (plan changes restart the app)
  17. Refund Policy billing stops at the end of your current period and you won't be charged again. (when billing stops after cancelling)
  18. Refund Policy Your subscription fee is not refundable and will only be adjusted for the next billing period. (subscription fees aren't refunded)
  19. Refund Policy You may downgrade or cancel your account at any time. (downgrade or cancel at any time)
  20. Terms and Conditions of Service Any outstanding balance becomes immediately due and payable upon termination of the Terms for any reason. (an outstanding balance is due on cancelling)
  21. Refund Policy If you do not cancel your account before the free trail ends you will automatically be charged. (trials convert to paid unless cancelled)
  22. CloudMailin (Heroku Dev Center) You can retrive the message history archive from the dashboard before removing the add-on. (downloading message history before removing the add-on)

Not confirmed yet

  • The dashboard steps for cancelling a plan or deleting an account, and whether the service keeps working until the end of the paid period, aren't confirmed; CloudMailin documents cancelling on its 'Cancelling your Account or Subscription' page
  • Whether a cancelled paid plan drops to the free plan or closes the account isn't confirmed
  • How long CloudMailin keeps messages and settings after cancelling isn't stated in its Terms
  • How to export message history from an account billed directly by CloudMailin isn't described; Heroku's guide says the archive can be downloaded from the dashboard

Independent re-check, 2026-10-05

A second reviewer re-read the official pages and corrected what was wrong or missing. The JSON lists what changed.

Partly confirmed (see what's unverified), 2026-10-05. Cancel flows change: if this one did, tell us at support@stackcut.io. Stackcut Exits is open data (CC BY 4.0).