Email Hosting Providers

SPFSPF

SPF Usage Statistics · Download List of All Websites using SPF

The Sender Policy Framework is an open standard specifying a technical method to prevent sender address forgery.

DKIMDKIM

DKIM Usage Statistics · Download List of All Websites using DKIM

DomainKeys Identified Mail provides a method for validating a domain name identity that is associated with a message through cryptographic authentication.

Copyright

Copyright InfringementCopyright Infringement

Copyright Infringement Usage Statistics · Download List of All Websites using Copyright Infringement

The site has had more than 10 successful copyright takedown requests since 2011.