Before you create your first optin or email campaign form, you need to integrate or connect Ansh Optin Form with your email marketing service provider. Ansh Optin Forms support more than 10+ popular email marketing service provider such as Active Campaign, Aweber, Campaign Monitor, Constant Contact, ConvertKit, GetResponse, HubSpot, iContact, MailChimp, MailerLite, MailPoet, Mailster, SendinBlue.

here, You can see there are many email marketing service provider lists. So, you can setup and manager any email marketing provide as per your need. for this, you have to setup with email marketing service provider API Key, Access token, Username and password etc. Those are depends on email marketing service provider.