I try to set up JFrogs Mail Server Configuration according to this article:
https://www.jfrog.com/confluence/display/JCR6X/Mail+Server+Configuration
Unfortunately I can't find the Configuration | Mail section within my admin account.
The Administration Menu looks like this for me: Administration Menu
It seems like you have a jcr version 7.x and to get into the mail config, navigate to JCR UI --> Administration --> General | Mail Server as below,
And add the mail config.