This site has an SPF record for MailChimp managed email sending.
https://mailchimp.com
Email Hosting Providers · Campaign Management
Get access to data on 799,952 websites MailChimp SPF Customers. We know of 439,325 live websites using MailChimp SPF and an additional 360,627 sites that used MailChimp SPF historically and 205,673 websites in the United States.
MailChimp SPF websites that are also using other technologies.
Get a list of 799,952 websites using MailChimp SPF which includes location information, hosting data, contact details, 439,325 currently live websites and an additional 988,489 domains that redirect to sites in this list. 360,627 sites that used this technology previouslyand 205,673 websites in the United States currently using MailChimp SPF.
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