Mailchimp automated mailing platform started closing accounts related to the crypto currency industry, including mailings about ICO, exchanges, news, books and thematic events. This is reported by Coindesk.
Thus, an employee of the Week In Ethereum, Evan van Ness, stated that the company banned the resource account, because "hates blockchain."
Evan Van Ness Twitter
On March 29, the rules for using the Mailchimp service were updated.
...we cannot allow businesses involved in any aspect of the sale, transaction, exchange, storage, marketing or production of cryptocurrencies, virtual currencies, and any digital assets related to an Initial Coin Offering, to use MailChimp to facilitate or support any of those activities.
Mailchimp responded with Tweet, saying that "Cryptocurrency-related information isn’t necessarily prohibited. It can be sent as long as the sender isn’t involved in the production, sale, exchange, storage, or marketing of cryptocurrencies".