The script is available on GitHub:
https://github.com/maykonrds/powershell/blob/master/SharePoint/SharePoint-Follow.ps1
The script is very simple, but before running it is necessary to create an App register in Azure AD, after that it is necessary to configure the permissions for the App to access the Microsoft Graph API:
These are the steps to configure the MailTip for external contact on Exchange Online.
In the exchange online:
Set-OrganizationConfig -MailTipsExternalRecipientsTipsEnable $true
Create a contact:
In the PowerShell create a custom MailTip:
Set-MailContact -Identity "Maykon Gmail" -MailTip "Please! Check if this is the right USER"
In the Outlook, create a new message and select the contact:
