SPF
Download List of All Websites using SPF
The Sender Policy Framework (SPF) is an email-authentication technique which is used to prevent spammers from sending messages on behalf of your domain. With SPF an organisation can publish authorized mail servers.
G Suite
Download List of All Websites using G Suite
formerly Google Apps for Work and Google Apps for Your Domain is a brand of cloud computing, productivity and collaboration tools, software and products developed by Google.
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SendGrid
Download List of All Websites using SendGrid
SendGrid is a Denver, Colorado-based customer communication platform for transactional and marketing email.
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