HP Matrix Operating Environment Software - Manual (Page 76)

In Operations Orchestration on the CMS, you might have to set the following Operations
Orchestration system properties with the appropriate SMTP values:
Notes Example Value Name
If SMTP is on another server, replace 127.0.0.1 with the
server's IP address 127.0.0.1 HpioSmtpHost
If the SMTP port is different than 25, replace 25 with
SMTP's port 25 HpioSmtpPort
76 Using Operations Orchestration