This function retrieves the protocol settings (MAPI, OWA, IMAP, POP, EWS, ActiveSync)
for Exchange Online mailboxes.
It can filter mailboxes by identity or by domain.
Additionally, it provides information about SMTP Client Authentication settings
at both the mailbox and tenant levels.
This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose, -WarningAction, and -WarningVariable. For more information, see about_CommonParameters.