1) You will need a .crt and .key file.
You can use certificate files that are already in use in your system or you can create new ones.
If you need help creating these files follow the steps in the following article:
Generating A Certificate - SSL
2) Copy the certificate and key files to the SMG server.
The default location to place these files on the server is /opt/gwava/certs.
If this directory does not exist it can be created. It is not required to place the files in this location. They can be put in any folder as long as the path to the files is known.
Note: When using winscp, you will have to place them in the /home/gwava directory since you can't gain root access with this tool. Then you can move them from the prompt to the certs directory by typing: mv <filename> /opt/gwava/certs .
3) Configure their location in the SMG System Administration web page.4) Restart all the modules by going to Module Management | Module Status and click on Restart All.Go to Module Management | Interfaces | SMTP Interface Manager | SMTP Interface | SSLAdd the exact path where the .crt and .key files are located in the 'SSL certificate file' and 'SSL key file' fields and add the key password to 'SSL pass phrase' field if required.Save the changes.
An intermediate certificate can be added optionally as well. Make sure to add all files for the intermediate certificate to the certs directory, as well as adding the path in the 'SSL certificate chain file' field.
The cipher list is also optional.