Skip to content
  • There are no suggestions because the search field is empty.

Getting Started with SMTP Relay Service

Relaying mail to Paubox via SMTP can be done in 2 ways: SMTP Server Solution and SMTP Relay Service.  Here's how to get started with the SMTP Relay Service.

You'll need:

  • Subscription for Paubox Email API or SMTP
  • Sending domain's SPF record updated to contain: include:_spf.paubox.com  
  • On-premise server that can relay email to Paubox over SMTP from a static IP
  • STARTTLS enabled on your on-premise mail server (TLS v1.2 or higher)

 

How to get started: 

  • Contact your CSM or support@paubox.com:
    • Provide your server's static IP address
    • Get the appropriate Paubox server hostname
  • Use these values to send mail:
    • Hostname: <hostname>
    • Port: 25 or 587