Send time optimizer
Choose a practical send window before you test.
Pick a starting send window by audience, industry, campaign type, and recipient timezone. Treat it as a controlled test, not a promise of opens.
Timing preflight
Start with a clear test window.
Folderly keeps timing guidance simple: avoid noisy inbox windows, segment by region, then validate with real campaign data.
3
send windows
4
inputs
0
guarantees
Campaign timing
Use the closest match for the audience you are sending to. Run one test window at a time.
Recommended window
Tuesday at 10:00 AM
Time shown in Eastern Time. Use it as your first controlled timing test.
This index is a planning signal for comparing windows in this tool, not a forecasted open rate.
1. Tuesday at 10:00 AM
Use this as the primary test window.
2. Wednesday at 9:00 AM
Use this as the primary test window.
3. Thursday at 2:00 PM
Keep this as a backup test window.
How to use it
Timing helps only after the message is ready.
A cleaner send window can reduce noise, but deliverability still depends on authentication, list quality, sender reputation, and a message people understand quickly.
Current timing notes
Is this a guarantee?
No. It gives a practical first testing window. Your list quality, offer, subject line, and sender reputation still drive results.
Which timezone should I use?
Use the recipient's local timezone whenever possible. If the list spans regions, segment the send by region instead of using one global time.
What should I test next?
Run one timing test at a time, then review inbox placement, replies, unsubscribes, and bounce behavior before changing the message.