how to find members who's email does not exist?

[skeftomai]

Hi, my forum has 1300 members but is a bit old. I suspect about half of my members' emails do not exist anymore. I know how to extract the email list to .csv file.

Is there a quick way to find out which emails are valid? What steps must I follow?

[Looking]

Off the top of my head: send a newsletter and see which ones bounce back.

[skeftomai]

I sent last year, and about 500 emails found no recipient. The problem is, how to make a clean list. It is time-consuming to delete emails one by one.

[Illori]

there really is no other way to do what you want.