This is the specification for the Postman package for Stellar. The idea is to create a simple interface for nodemailer that allow developers easily send mails for module or application development.
All the configurations are under the mailer namespace, so if you want to set any of the specified configurations followed enumerated you needs to add them inside the namespace.
The server object was all the configurations for to connected with the email server via SMTP protocol.
This is the hostname where the email server lives.
Port used by the SMTP service to communicate with the outside world.
This is used to identify if the connections must be done using a secure connection.