MailChimp is a widely used Mailng List delivery and support service.
http://www.mailchimp.com
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Get access to data on 4,244,452 websites that are MailChimp Customers. We know of 1,772,257 live websites using MailChimp and an additional 2,472,195 sites that used MailChimp historically and 925,975 websites in the United States.
MailChimp websites that are also using other technologies.
Get a list of 4,244,452 websites using MailChimp which includes location information, hosting data, contact details, 1,772,257 currently live websites and an additional 1,761,394 domains that redirect to sites in this list. 2,472,195 sites that used this technology previously and 925,975 websites in the United States currently using MailChimp.