How to recover deleted items in SUMail

To recover items that were removed from "deleted items" in the Office 365 (email, contacts, calendar) using the following methods:

• Using Outlook
  • https://support.office.com/en-us/article/Recover-deleted-items-in-Outlook-for-Windows-49e81f3c-c8f4-4426-a0b9-c0fd751d48ce
• Using OWA (Outlook Web App)
  • https://support.office.com/en-us/article/Recover-deleted-items-or-email-in-Outlook-Web-App-c3d8fc15-eeef-4f1c-81df-e27964b7edd4?ui=en-US&rs=en-US&ad=US