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Yes they do. http://www.mailchimp.com/blog/isps-switching-to-returnpaths-feedback-loop/ http://www.mailchimp.com/blog/isps-switching-to-returnpaths-...
by scribblewiki 18y ago
Yes they do. http://www.mailchimp.com/blog/isps-switching-to-returnpaths-feedback-loop/ http://www.mailchimp.com/blog/isps-switching-to-returnpaths-...