SMTP is the fastest way to get started with sending mails. Integrating PepiPost with your application is quite easy as it requires only the modifying of SMTP configuration.

You need to:

    1. Change the SMTP username and the password to your PepiPost credentials.

    2. Set the server hostname to

    3. You can connect via unencrypted or TLS on ports 25, 2525, and 587.

In SMTP, one mail is sent at a time. All you have to do is connect your mailing server, or servers (if you have multiple) to PepiPost’s server.

Advance Tracking of SMTP emails:

Our SMTP allows you to deliver custom handling instructions for email. You can pass any unique value associated with a particular transaction like Invoice ID, Transaction ID, etc in a email header parameter known as X-APIHEADER. The value of the X-APIHEADER can be in any format, we store it as plain text and return the same in Webhooks. Also, these values will be linked with each SMTP transactions and will be available under your Pepipost account. 

e.g. X-APIHEADER: 282747328;