A: Hi chief_Abiye,

Thank you for asking about this.

To ensure that you get high quality leads, email marketing apps like SendFox uses and recommends Double Optin. Double optin is an extra step that a subscriber has to take when subscribing to your mailing list. This verifies your contacts email addresses and confirms interest.

It is also one of the many ways to filter out spambots from real persons. This is an email marketing best practice that is being implemented by almost all of the email marketing apps in the market today.

What it means for those who signs up? It just means that they will have to ensure that when they sign up to you, they will need to make sure that they are entering the correct email address and that the email address they are entering is valid. SendFox will send an email to the email address they have entered and in order to confirm subscription, they will have to click the confirmation link inside the double optin email.

In SendFox, you will not be able to send any other emails to contacts that have not confirmed their subscription.

Hope that clears things up.