What is Send Time Optimization (STO)?

Quick Answer

Using data to determine the best time to send emails to each subscriber for maximum open and click rates.

Send time optimization analyzes each subscriber's historical email engagement to predict when they're most likely to open emails. Rather than sending all subscribers the same time, STO delivers each email at the individual's optimal time window. Studies show STO can increase open rates by 15-25%. MisarMail's AI-powered STO calculates optimal send windows per contact based on past engagement patterns.

Related Terms

Open Rate

The percentage of delivered emails that were opened by recipients.

Email Personalization

Customizing email content for individual recipients using their data, behavior, and preferences.

Email Automation

Using software to automatically send emails based on triggers, schedules, or conditions without manual intervention.

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