SMTP Introduction

All the information about sending emails with the Mailazy SMTP.

Mailazy supports sending via SMTP. Our servers listen on port 587 and require a non-TLS connection and should be upgraded to TLS using the STARTTLS command.

Note: See SMTP to learn how to configure the SMTP and email clients to work with Mailazy!


Before you can start using the API, you need to do the following:

  1. Create a Mailazy account.
  2. Create an API Key and Secret.

Server Host


You authenticate to the Mailazy SMTP by providing your API Key and Secret in the Login command. You can manage your access keys on the dashboard itself.

Set your username to the Access Key and password to the Access Secret generated from the dashboard.

SMTP Attachment

You can post multiple attachment values, You just need to attach files to your SMTP mutipart content boundary.

We allow a maximum of 10MB of attachment data including your HTML and Text content. You can only send following attachment types:

  • .pdf
  • .csv
  • .xlsx
  • .xls
  • .txt
  • .zip
  • .doc
  • .docx
  • .png
  • .jpeg
  • .jpg
  • .gif