📖 Glossary

What is Email Warm-Up?

The process of gradually increasing the volume of emails sent from a new IP address or domain to establish a positive sender reputation with ISPs.

Detailed Explanation

When you start sending from a new IP or domain, ISPs view you with suspicion because you have no history. If you suddenly send thousands of emails, they will likely be blocked or marked as spam. IP warming involves starting with a small sending volume and incrementally increasing it over days or weeks while maintaining high engagement and low complain rates. This demonstrates that you are a legitimate sender.

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