Create the NGINX SMTPS Offloaded Virtual Service

Follow the steps below to create and configure the recommended settings for the Virtual Service:

1. In the main menu of the LoadMaster Web User Interface (WUI), go to Virtual Services > Add New.
2. Type a valid IP address in the Virtual Address text box.
3. Type 587 in the Port text box.
4. Enter a recognizable Service Name.
5. Ensure tcp is selected as the Protocol.
6. Click Add this Virtual Service.
7. Configure the settings as shown in the following table:

   Section	Option	Value	Comments
   Standard Options	Server Initiating Protocols	SMTP
   	Persistence Mode	Source IP Address
   	Persistence Timeout	1 Hour
   	Idle Connection Timeout	120
   SSL Properties	SSL Acceleration	Enabled
   	Supported Protocols	TLS1.0, TLS1.1, TLS1.2, TLS1.3	While this workload may not support TLS1.3 yet, we recommend enabling it for future proofing.
   	Cipher Set	BestPractices
   Real Servers	Real Server Check Method	Mail (SMTP) Protocol
   	Checked Port	25

8. Add the Real Servers:
   1. Expand the Real Servers section.
   2. Click Add New.
   3. Type the address of the Real Server.
   4. Type 587 as the Port.
   5. Click Add This Real Server.
   6. Repeat the steps above to add more Real Servers as needed, based on the environment.