Email Sending Times: What Is the Best Time to Send Your Email?
Email sending times are important for open rates, click rates, customer engagement, sales... The list goes on. When is the best time to send emails? ...
Send Time Optimization
Also known as: STO, Optimal Send Time, Best Time to Send
A feature that chooses the best time to send each email based on when a person usually opens and clicks your messages.
Send time optimization is a tool that picks the send time for each person on your list. It looks at when they tend to open and click your emails. Then it quietly shifts future sends into those windows. You set up the campaign once and the timing adjusts in the background.
Getting the timing right helps more people see and act on your emails. Instead of one blanket send at 9 AM, subscribers get messages when they are already in their inbox. This often lifts opens and clicks without any extra creative work. It is most useful for ongoing campaigns like newsletters and promos.
For best results, send a steady stream of campaigns so the system can learn. Most tools need a few opens from each person before the timing becomes accurate. Start with your largest, most engaged segments so the model has good data. Check performance against a normal send time and keep the setting only if it beats your baseline.
Related Terms
Time Zone Optimization(Time Zone Targeting)
Time zone optimization is automatic scheduling that sends each email at a normal hour in the subscriber's own time zone so messages land when they are most likely to check their inbox. It uses location or time zone data to stagger the send across regions.
Learn more →Triggered Email
A triggered email is a message your system sends automatically when someone does something specific, like signing up, leaving items in a cart, or reaching a milestone. It goes to one person based on their action instead of going to your whole list at a fixed time.
Learn more →Unique Opens
Unique opens is the count of individual people who opened your email at least once. Each person is only counted one time, even if they open the same email many times.
Learn more →Abandoned Cart Email(Cart Abandonment Email)
An automated email that goes out when someone adds items to their cart but leaves without buying. These emails show what they left behind and usually include a direct link back to their cart. Most businesses send a series of 2-3 reminders over a few days, sometimes sweetening the deal with a discount or free shipping offer.
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