[_asciiker_]

Sentopia.net founder here, I don't believe this is just Mailchimp, we have received a warning from Paypal entitled "Cryptocurrency warning." where it states "(...)we noticed that your activity involves the trading or transfer of crypto currency which is prohibited under our Acceptable Use Policy. As this is not permitted on the PayPal platform we ask that you cease any activity that results in the trading or transfer of crypto currency."

We are a digital marketing business.. we don't trade or transfer any crypto, so this can only be because several of our customers have sent blockchain related campaigns and the campaign title shows up on Paypal's product description on checkout. If this is the case, then it doesn't seem fair at all.

Edit: we have no plans to restrict crypto related campaigns for our current or new customers.