Operation system and method of workflow integrated with a mail platform and web applications

An operation system of workflow integrated with a mail platform and web applications, comprising:

• at least one web application configured to send an email comprising an application identification of the web application, a target URL (Uniform Resource Locator) corresponding to a target, and at least one recipient;
• and
• a mail platform comprising a transformation controller configured to receive the email, and configured to mail a notification email including a data processor and the email to the recipient,
• such that the data processor retrieves the user information of an operator if the data processor in the notification email is triggered by the operator, and transmits a message having the user information and the target URL to the web application according to the application identification,
• such that the web application authenticates the user information and launches the target according to the target URL if the user information conforms to the recipient.