This section gives further installation steps when Email Server is selected as a module with the POP option.

1. We will give instructions from the following screen:

2. Click on Next >>. That will bring up the following Window.

3. Rainmail supports the idea of Email domains. In here, email addresses have the location indication included in user name (e.g., support.chn@carizen.com). In this case, all email addresses in the Rainmail server will have this suffix by default. This suffix is also used by Rainmail in routing emails to other locations. If you want to implement the same in Rainmail, check Use Location based Email box.
4. When Use Location based Email box is checked, the Window displays an additional field as follows:

5. In Location Suffix field, enter the suffix for email addresses at this location.
6. To implement Email server with no such restrictions on Email addresses or if you are not clear on the concept above, leave Use Location based Email box unchecked.
7. Click on Next >> button. That will bring up the following dialog.

8. Enter the license key provided with the letter in License Key edit field.
9. Enter domain name for Installation in Domain Name field.
10. Rainmail Server can be installed in evaluation mode, but with full set of features for a period of thirty (30) days.
11. To install the evaluation version, leave the License key as blank.
12. Click on Next >> button.
13. If evaluation version is being installed, Rainmail will display the following dialog:

14. Click on Yes to proceed.
15. If the license key is valid, it will bring up the following screen. If the key is not valid, please check and input again.

16. In the screen, the Internet connectivity details need to be entered. The following table can be used to find what is to be entered:

17. Once the above details are entered, click on Next >> button. That will bring up the following Window:

18. Check Receive emails from External/Backup Mail Server box. That will bring up the following dialog:

19. Get the following from your Email Service provider (who is providing POP based Email service for your organization):
    • Mail Server IP
20. Enter the Mail Server IP information from License key letter in Mail Server field.
21. Click on Next >>. That will bring up the following Window:

24. Rainmail Server can send outgoing emails directly or through an external relay server. The above Window allows administrators to specify how to send outgoing emails.
25. If you want to send out emails directly, leave the Specify SMTP Relay Server box unchecked.
26. If your Email service provider allows relay of outgoing emails through their Server and you want to enable this feature, follow the instructions in the table below:

Sl. No.	Instructions
1	Check the Specify SMTP Relay Server box. That will change the dialog as follows:
2	Get the following details from your Email service provider Outgoing Mail Server IP SMTP Auth Account name (Can be one of the Email account names) SMTP Auth Password (If an Email account name is specified, use the password of the account)
3	Check SMTP Auth box. That will change the dialog as follows:
4	Enter the Outgoing Mail Server IP in SMTP Server edit field.
5	Enter the email account name in Account name edit field.
6	Enter email password in Password as well as Confirm Password fields

27. Click on the Next >> button.
28. If Enterprise Server has been selected, following dialog will be displayed:

29. To specify a new Certificate password, enter the new password in Certificate Password as well as Confirm Password fields. Click on Next >>. Installation will start and status will be displayed as follows:

30. Once the installation is complete, following dialog will be displayed:

31. Click on OK to continue. Rainmail will configure all packages and will display the following Window:

32. Click on Finish to continue. That will display the following Window:

33. If you are installing Rainmail on Cent OS 5.10, do the following:
    • Click No in the above dialog.
    • Open up a terminal using Start -> System -> Terminal menu items.
    • Run the post installation script for Cent OS 5.10 as follows:
      1. cd /root/RIS-R27-cos5.10
      2. bash icscos5.10_R27_post.sh
34. The installation will be completed and server will reboot. After rebooting Rainmail Server is ready for use.