User unable to delete Inbox rules

In scenarios where an exchange online user is unable to delete inbox rules via outlook, use the following PowerShell commands to delete an specific or all rules from users mailbox.

- Connect with Exchange Online in elevated PowerShell windows
Connect-ExchangeOnline

- To get all rules in user's mailbox,

Get-InboxRule -Mailbox <[e-mail]>

- To delete an specific rule

Remove-InboxRule -Mailbox '[e-mail]' -Identity "Rule Name"

- To remove all rules from a user's mailbox

Get-InboxRule -mailbox [e-mail] | Remove-InboxRule