How to follow up on an email that got no reply

When to follow up on an unanswered email, how to write a follow-up people actually answer, and how to stop questions you asked from slipping.

You asked a clear question, and nothing came back. Most of the time that isn’t a no. The email got buried under newer ones, it needed a decision the reader wasn’t ready to make, or it arrived at the wrong moment and never came back to the top. A good follow-up fixes all three, and it’s easier to write than it feels.

When to follow up

There’s no universal rule, but a few rhythms work for most people:

A colleague, about something you need to keep working: two or three working days.
A customer, partner or anyone outside your company: three to five working days.
Anything with a real deadline: say the deadline in the first email, then follow up a day or two before it, not after.
A cold email to someone who doesn’t know you: about a week, and no more than two follow-ups in all.

The deadline matters more than the gap. If you need an answer by Thursday, a follow-up on Wednesday morning is helpful; one on Friday is a complaint.

How to write a follow-up people answer

Reply in the same thread, so the reader has the context without searching for it.
Lead with the one thing you need, in a sentence. “Just bumping this” makes the reader reread the whole thread to find out what you want.
Make it easy to answer: offer a default (“I’ll plan on Monday unless you’d rather the week after”), or a yes-or-no question.
Keep it to two or three sentences. A follow-up that’s longer than the first email rarely gets read.
Leave out the guilt. “Sorry to bother you again” and “as per my last email” both make answering feel worse.

A follow-up that works

Hi Priya, could you confirm the pilot start date? I’ll plan on Monday the 2nd unless you’d rather move it a week. Thanks, Alex

How many times

Twice is usually enough. After the second follow-up, close the loop yourself: say what you’ll assume, or that you’ll pick it up another way. “I’ll take that as a no for this quarter and check back in January” ends the waiting for both of you, and often gets the reply the follow-ups didn’t.

The hard part: remembering to follow up at all

Writing the follow-up is easy. Noticing that something you asked days ago never got an answer is the part that slips, because nothing reminds you of an email that didn’t arrive. A few ways to catch them:

Gmail can suggest emails to follow up on: Settings → General → Nudges.
Snooze your own sent email to come back on the day you’d follow up, or give it a “waiting on” label and check the label daily.
Keep a short list of what you’re waiting on, and who from, where you plan your day.