Acceptable Use Policy
What may and may not be sent. Part of the Terms of Service.
Last updated 2026-09-06
Why this exists
Every account in the sandbox sends from a domain all of our customers share. One person sending junk from it damages delivery for everyone else, and the damage is slow to undo. That is the whole reason for this page.
Send this
Transactional mail to people who asked for it or have a real relationship with you: password resets, receipts, confirmations, alerts, account notices, and the ordinary business of an application talking to its users.
Not this
- Unsolicited bulk mail of any kind, however it is described.
- Mail to addresses bought, scraped, harvested or otherwise obtained without the person knowing.
- Phishing, credential harvesting, or pretending to be a person or company you are not.
- Malware, or links to it.
- Mail that is unlawful, harassing, or that promotes harm to anyone.
- Anything designed to evade a filter, a suppression list, or the sandbox restrictions — including opening extra accounts to get around a cap.
- Using the sandbox to reach anyone other than addresses you personally control.
What happens if you do
We suspend the account, usually immediately and without warning, and tell you why. Serious or repeated abuse ends the account permanently.
We honour bounces and complaints automatically: an address that hard-bounces or reports you is suppressed for your account and further sends to it are refused. Do not try to work around that.
To report abuse coming from us, email support@sendslice.com with the full message headers. We read those.