Domain based email ids
If you have a large user base you can even import users in bulk. Create a new sheet and export it as a .csv file. The .csv file can be created in Zoho Sheet. Give the header as 'Name' and 'Password'. Fill in the required details and export it as a .csv. After clicking the Browse window and selecting the file, all the users will be imported into your organization.
Please communicate the password to the users so that they can use the credentials to login. Users will then have to create usernames at the first instance of login. This username will be unique across all Zoho services.
You can directly import users from your LDAP directory to your Zoho Mail Suite account. Simply enter the LDAP server details. If you require more users to be added from another LDAP server please delete the existing server details first, enter the new server details and import users.