Hey [first name]!
Just ran across your website and noticed you were using Infusionsoft [Your competitor].
How are you liking it?
I run an email service provider called Convertkit [Your company]. It's just like Infusionsoft, only simpler to use.
If you're up for it, I would love to jump on a quick call with you and get your opinion on how we could make CK better (and see if it would make sense for us to work together).
Would Tuesday at 8 am be a good time for you? 4
(If not, I'm flexible, just let me know.)