KB-2100 Overview of custom SMTP server setup process in Appian Cloud


The purpose of this article is to give a high-level overview of the custom SMTP server setup process in Appian Cloud. Note that custom SMTP configuration is not available for customers subscribed to Basic Support.


  1. Customer: Create a support case and submit a completed version of the custom SMTP server worksheet. All sections highlighted in green are required, whereas all sections highlighted in yellow are optional.
  2. Appian: Review the worksheet, configure a new or modified VPN tunnel if necessary, and ensure that Appian can telnet to the provided host and port.
  3. Appian + Customer: If the SMTP server requires authentication, communicate the password securely through a Webex. At this point all information needed to configure a custom SMTP server has been communicated.
  4. Customer: Provide Appian with a 2-4 hour window to restart the Appian Cloud site to persist the configuration changes.
  5. Appian + Customer: Troubleshoot the connection.

For information on the custom SMTP server setup process in self-managed environments, reference the following documentation.

Affected Versions

This article applies to all versions of Appian Cloud.

Last Reviewed: March 2020