This site has an SPF record for MailChimp managed email sending.
https://mailchimp.com
Email Hosting Providers · Campaign Management
Get access to data on 801,716 websites that are MailChimp SPF Customers. We know of 479,538 live websites using MailChimp SPF and an additional 322,178 sites that used MailChimp SPF historically and 228,693 websites in the United States.
MailChimp SPF websites that are also using other technologies.
Get a list of 801,716 websites using MailChimp SPF which includes location information, hosting data, contact details, 479,538 currently live websites and an additional 1,110,417 domains that redirect to sites in this list. 322,178 sites that used this technology previously and 228,693 websites in the United States currently using MailChimp SPF.
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