How do I use SendGrid?
Depending on how you currently send emails, this process is going to vary. At the most basic level, we require the following when integrating us with your system:
Username/password authentication - this is the same set of credentials that you use to sign in to your account. SMTP host - specify smtp.sendgrid.net as your outbound relay point.
Port configuration - we accept unencrypted and TLS connections on ports 25, 587, and 2525. SSL encryption is available on port 465, however this generally requires some additional network adjustments.