Verify existing subscribers

I have a list of about 400 subscribers for an client. Many of the subscribers are old and I would like to send them an email asking that they confirm their subscription. I would like to weed out those that do not respond.

I may well be missing the obvious but I can't see a way to do that with Campaign Monitor.

Any ideas.


Join 150,000 companies around the world that use Campaign Monitor to run email marketing campaigns that deliver results for their business.

Get started for free