When should you send your email if you want a reply?
Does timing affect whether your email gets a reply? Yes — but less than you think. Here's what actually moves the needle.
Search for "best time to send an email" and you'll find confident answers: Tuesday at 10! Thursday at 8! The truth is more sober: timing matters, but it matters far less than the content — and almost nothing compared to whether you follow up.
Here are the rules of thumb that actually hold, and why.
Send when the recipient is processing their inbox — not when you're done writing
The key mechanism is banal: an email that lands at the top of the inbox while the recipient is already in it gets opened and answered more often. An email that lands at 10 pm is buried the next morning under a night's worth of newsletters and notifications.
That's why the classic advice roughly works:
- Weekday mornings (8–10) hit most office workers' inbox routine.
- Monday morning is rush hour — the whole weekend queue gets cleared, and your email competes with everything else.
- Friday afternoon is a gamble — the reply often becomes "I'll look at it Monday", and Monday is rush hour again.
But these are averages. If you know the recipient's rhythm — the contractor who answers at 6:30 am, the manager who processes email on Sunday evening — that knowledge beats any statistic.
Write now, send later
The best time to write the email is when it's on your mind. The best time to send it may be different. Use Outlook's "delay delivery" so you can empty your own head at 9 pm without your email drowning in the recipient's overnight pile.
The timing of the follow-up matters more than the timing of the email
Here's the inconvenient truth behind every "best time" article: the difference between sending at 10 am and 2 pm is marginal. The difference between following up and not following up is enormous — a large share of all replies only arrive after a reminder.
So spend five minutes less on timing the perfect send, and five minutes more on making sure the follow-up happens:
- Agree on a deadline in the email itself ("could you reply by Thursday?") — then you have something concrete to politely remind about.
- Decide the follow-up time the moment you hit send.
- Or let a tool keep score: Follow Me Up finds the emails you're waiting on in your Outlook inbox and reminds you to follow up — no matter what time of day you sent them.