The Official INinbox Sign Up Form plugin makes it easy to grow your subscribers! Integrate your newsletter sign up forms in your WordPress site.
I just started to use on my Blog. Really professional and easy to handle. Users just need to add an API key, that's it they will do the rest for you.
At last, a really Really easy way for email marketing and wordpress Integration. This plugin delivers in every way. You just add your API key to the dashboard and you're just a click away from automatically publish stunningly beautiful email webforms.
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