How to prevent your campaigns from being marked as spam?

Spam filters have been designed to flag and remove suspicious emails that could be part of a scam. These spam emails are used as a means of delivering malware, and these filters might mistakenly see your emails as a threat.

When a filter incorrectly identifies your email as spam, there is a chance that your audience members will be reduced. Many people on your email list might never even receive your promotional emails again. You can prevent your campaigns from being marked as spam by doing the following:

  • Authentication : Implement email authentication protocols like SPF and DKIM to prevent domain spoofing and ensure messages come from a legitimate source.
  • Valid Domain and IP : Sending domains and IPs must have valid forward and reverse DNS records (also known as PTR records).
  • Secure Transmission : Use a Transport Layer Security (TLS) connection to encrypt emails during transmission and protect user data.
  • Standard Formatting : Messages should adhere to the Internet Message Format standard (RFC 5322) for proper formatting and avoiding compatibility issues.
  • Unsubscribe Options : All emails must include a clear and easy-to-use unsubscribe mechanism.
  • Low Spam Rates : Maintain a low spam complaint rate reported in Google Postmaster Tools (ideally below 0.30%).
  • Enforcement Timeline : New senders (those who haven't sent over 5,000 emails to Gmail daily since January 1, 2024) face an even stricter & faster enforcement schedule.