Resend to non-openers

You can send an email again to the people who didn't open it the first time.

1. In the email's report, copy the Sent list into column A of a spreadsheet, and the Opens list into column B.
2. Remove everyone in column A who also appears in column B. A formula like =COUNTIF(B:B, A2)=0 helps you find them.
3. Save the remaining addresses as a CSV and import them as a new list.
4. Duplicate the email, change the subject line if you like, and send it to the new list.

Opens are an estimate (see Opens are an estimate), so some people who did read it may get it twice. Resend once at most, and wait a few days first.