Confirmed Opt-In only runs Confirmed Opt-In (COI) Mailing Lists. only runs confirmed opt-in (COI)  mailing lists.

How it works

Any requests to join a List are emailed a Confirmation Message. The Subject line contains a random number that our computer generates each time.

See these detailed instructions on how to invite Subscribers and start the opt-in process.

How Subscribers are added

When the Subscriber replies (or clicks a link inside the email body), our server matches up the random number, adds them to your List, and sends your Welcome Message.

See these detailed instructions on changing the Welcome Message.

How it protects you

This prevents pranksters and viruses from getting other people signed up to your List.

Better delivery results

The lack of Spam complaints allows us to stay off various blacklists that can restrict delivery of your messages.