NewInfraOptimal: dedicated-IP mailboxes from $1.00, a quarter of the Google and Microsoft price.Meet InfraOptimal
Product Email Outreach Deliverability & Warmup Unibox & CRM Lead Finder Email Infrastructure Email Finder & Verification InfraOptimalNew Phone Finder Solutions Lead Gen Agencies SaaS Founders Sales Teams Recruiters Resources Blog Help Center Free Tools API Docs Why us Pricing Sign in Start free

Legal · Last updated September 27, 2026

Terms and Conditions

These Terms and Conditions ("Terms") govern your access to and use of the MailOptimal website, applications and services (the "Service"). By creating an account or using the Service, you agree to these Terms. If you are using the Service on behalf of an organisation, you confirm you have authority to bind it.

1. Your account

You must provide accurate information when you sign up and keep your login credentials secure. You are responsible for all activity under your account, including activity by team members you invite.

2. Acceptable use

You agree to use the Service only for lawful business communication. You must not:

  • send email to recipients without a lawful basis, or ignore unsubscribe requests;
  • send spam, phishing, malware or deceptive content, or impersonate any person or business;
  • use purchased, scraped or otherwise non-compliant lists in breach of applicable law;
  • attempt to disrupt, reverse engineer or gain unauthorised access to the Service.

You are responsible for complying with anti-spam and data protection laws that apply to your outreach, including CAN-SPAM, GDPR, CASL and similar regulations. We may suspend sending or accounts that put our infrastructure, deliverability or other customers at risk.

3. Contact data

Lead, email and phone data provided through Lead Finder, Email Finder and Phone Finder is supplied for legitimate B2B prospecting. You may not resell or redistribute it as a standalone dataset. Accuracy is not guaranteed, although credits for invalid results are handled according to the policy shown in your account.

4. Plans, billing and credits

Paid plans are billed in advance on a monthly or annual basis and renew automatically until cancelled. Credits are consumed as described on the pricing page and in your account. Fees are non-refundable except where required by law or stated otherwise in writing. We may change pricing with reasonable notice before your next billing period.

5. Lifetime deals

Lifetime plans provide access to the features and limits included in the plan at the time of purchase for the life of the Service. They are subject to these Terms, including the acceptable use rules above.

6. Your content

You keep ownership of the content, contacts and data you upload. You grant us a limited licence to host, process and transmit it solely to provide the Service. Our handling of personal data is described in our Privacy Policy.

7. Service availability

We work to keep the Service available and secure but do not guarantee it will be uninterrupted or error free. Inbox placement depends on factors outside our control, and we make no guarantee of specific deliverability results.

8. Cancellation and termination

You may cancel at any time from your account settings; access continues until the end of the current billing period. We may suspend or terminate accounts that breach these Terms. On termination you may export your data for 30 days, after which it may be deleted.

9. Limitation of liability

To the fullest extent permitted by law, MailOptimal is not liable for indirect, incidental or consequential damages, or loss of profits, revenue or data. Our total liability for any claim is limited to the amount you paid us in the 12 months before the claim.

10. Changes to these Terms

We may update these Terms from time to time. Material changes will be notified by email or in the app. Continued use of the Service after changes take effect means you accept the updated Terms.

11. Contact

Questions about these Terms can be sent to support@mailoptimal.com.

See also: Terms and Conditions · Privacy Policy