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mySMTP Sending Policy

At mySMTP, we’re committed to ensuring a reliable, secure, and compliant email sending environment — for you, your recipients, and everyone else on the internet. That’s why we’ve built strong safeguards and clear rules to protect email quality and reputation for all users on our platform.

Fighting Spam & Fraud – Every Day

We take platform integrity seriously. Every day, we work proactively to prevent malicious users and spammers from misusing our infrastructure. Fraud attempts using stolen credit cards, fake PayPal accounts, or synthetic identities are automatically flagged by our advanced AI vetting and fraud detection systems.

Thanks to modern payment authentication (like 3D Secure, Verified by Visa, and bank-level fraud screening), we’ve drastically reduced abuse and continue to monitor suspicious activity in real time.

About Email Lists & Bounce Rates

Good data = good results. We require that:

  • All email recipients have explicitly opted in to receive communication from you (in line with GDPR, CAN-SPAM, and international best practices).
  • Your email lists are clean, current, and verified before use.

Important thresholds:

  • We allow up to 5% combined bounce rate (soft + hard).
  • Higher rates may indicate poor data quality (e.g. purchased or scraped lists), which are not permitted.

💡Tip: Run your lists through a professional email verifier before uploading. This protects your sender reputation and avoids wasting email credits.

Spam Complaints & IP Reputation Monitoring

We monitor the performance and health of all IPs, sender domains, and customer activity 24/7. If a campaign generates elevated spam complaints, blocks, or deliverability warnings from ISPs or feedback loops, we’re immediately alerted — and so are you.

In some cases, we may pause or stop a campaign to protect your domain and our shared infrastructure from further damage. We’ll always notify you and work with you to resolve the issue quickly.

Prohibited Email Content

To ensure legal compliance and a respectful internet, the following content types are not allowed on the mySMTP platform:

  • Sexually explicit or adult content
  • Tobacco or vaping promotions
  • Narcotics or controlled substances
  • Weapons or ammunition
  • Political campaigning or ideologically biased messaging
  • Hacking tools, exploits, or cybercrime services
  • Content encouraging violence, riots, or illegal activity

If in doubt — ask us. We're happy to help you stay within the guidelines.

✅ Sending Essentials (What Every Email Must Include)

To stay compliant and build trust with your recipients, every campaign must include:

  • A clear and consistent sender identity: from-name, from-address, and reply-to must be real and recognizable.
  • Your company's physical postal address.
  • A working unsubscribe link that allows users to opt out easily.
  • Adherence to our Terms of Service and local regulations.

Need help cleaning your data, verifying your list, or reviewing your campaign content? We’re here to help — reach out to This email address is being protected from spambots. You need JavaScript enabled to view it..

Let's keep inboxes clean, compliant, and full of value. ✉️