Acceptable Use Policy

Last updated: November 2026

Mailzo helps people handle their own email. To keep it safe for everyone, and to keep email providers trusting Mailzo, you agree not to use Mailzo, including its follow-ups, templates, scheduled sending, AI and connected AI apps, to:

  1. Send spam. That means bulk or unwanted messages, messages to bought or scraped address lists, or emails that break anti-spam laws such as CAN-SPAM, GDPR or CASL.
  2. Mislead people. No phishing, pretending to be someone else, fake senders, or scams.
  3. Harass or threaten anyone, or send hateful, violent or sexually exploitative content. Content that sexually exploits children is strictly banned and will be reported.
  4. Break the law, or help someone else break it.
  5. Infringe other people's rights, such as their copyright or privacy.
  6. Spread malware or harmful links.
  7. Attack or overload Mailzo's account server or update server, or any email provider. This includes probing for weaknesses without permission (see our Security page for how to report problems the right way) or getting around limits.
  8. Break your email provider's rules, such as their sending limits.
  9. Use AI to deceive. Don't use AI features to write messages meant to defraud or manipulate people.

Follow-ups are for following up with people you've already been in touch with. They are not a tool for cold outreach campaigns.

What happens if this policy is broken

We may suspend or close the Mailzo account involved, depending on how serious it is. We may also report illegal activity to the authorities.

Reporting abuse

If you think someone is misusing Mailzo, email hello@getmailzo.com with as much detail as you can.