Scenario
User needs to set their emails to show only one email address on the FROM email address sent from the system
Solution
Option 1
In Setup > Company > Email Preferences > Transactions subtab, select Company Return Email Address from the FROM ADDRESS FOR EMAILED FORMS dropdown.
The FROM Email Address will be sourced from the RETURN EMAIL ADDRESS field found in Setup > Company > Company Information.
Option 2
In Setup > Company > Email Preferences > Transactions subtab, select Subsidiary Return Email Address from the FROM ADDRESS FOR EMAILED FORMS dropdown.
The FROM Email Address will be sourced from the RETURN EMAIL ADDRESS field found in Setup > Company > Subsidiaries > Subsidiary Record. Note that there's a need to update each subsidiary's return email address with the single email address the user wants to show in the From field of your emails