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.

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.

SendGrid

   SendGrid is a Denver, Colorado-based customer communication platform for transactional and marketing email.

Amazon S3

   Amazon Simple Storage Service (Amazon s3) ,Amazon S3 is cloud object storage with industry-leading scalability, data availability, security, and performance. S3 is ideal for data lakes

Server partial requests support

   The Accept-Ranges response HTTP header is a marker used by the server to advertise its support of partial requests. The value of this field indicates the unit that can be used to define a range.