Hi Ramkumar (@Soft_Big_Bear ),
Welcome to the Speckle community. If you haven’t already, please take a moment to let the community know a little more about yourself and what you are hoping to achieve with Speckle.
To enable email, you should add the below to the speckle-server environment block, replacing the content within the quotation marks with the appropriate value for your email service.
If your organisation does not operate an email service (SMTP server), you may wish to sign-up for an online service - such as MailJet, MailChimp, or any of the many other similar services. Alternatively, if developing locally or testing you may wish to use a locally hosted SMTP server such as Maildev.
EMAIL: "true"
EMAIL_FROM: "<email address used in the 'from' header of sent emails>"
EMAIL_HOST: "<email host domain>"
EMAIL_PORT: "<port number>"
EMAIL_USERNAME: "<username of email service, if required>"
EMAIL_PASSWORD: "<password of email service, if required>"
Iain