Tag Archives: Relay

Web API vs SMTP Relay: How Ought to You Ship Your Email?

SendGrid’s Web API and SMTP Relay are the two primary methods of integrating with and sending email through SendGrid. You can think of their differences like methods of delivering a package: you could send a package in the mail, or you could drive it to the destination yourself. While the methods of delivery are different, […]

What Is SMTP Relay & How Does It Work?

New to SMTP relay service? We’ve got you covered. This post provides a quick explainer for everything SMTP relay servers. You’ll learn the following: What is an SMTP relay service? How does an SMTP relay server work? What is an SMTP mail relay? Why is an SMTP relay service important? What is an SMTP relay […]