Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature currently requires accessing the site using the built-in Safari browser.
If you are still using CentOS 7.9, it's time to convert to Alma 8 with the free centos2alma tool by Plesk or Plesk Migrator. Please let us know your experiences or concerns in this thread: CentOS2Alma discussion
By default Sitebuilder uses Zend_Mail() which works with PHP mail() function. If you wish to use smtp connection instead of mail() function you can configure it directly in Zend Framework which located in SB_ROOT/include/Zend/. As I know all necessary files are persist.
Unfortunately, I can not give you exactly instructions what should be modified. I can suggest you to check documentation for Zend_Mail(): http://surfchen.org/zend/framework/zend.mail.sending.html