Logging In Walkthrough To log in: 1. Navigate to the following URL: https://login.mimecast.com 2. Enter your Email Address in the logon screen. 3. Click on the Next button. 4. In the Password field, enter the password that has been provided by your Administrator. Note: If your administrator has chosen to use a Single Sign-On technology you will be redirected to the sign in page of the identity provider. You may be prompted to approve any Microsoft MFA request Once logged in, choose Personal Portal: