Office 365 NDR

Office 365 NDR Error Codes

At some time all email admins will come across a Non-Delivery-Report aka NDR. The NDR is an more or less informative email that something has blocked the mail server from …

550 5 7 520 access denied

Office 365 External Forwarding

If one of your Office 365 mailboxes has been configured with external forwarding you may encounter this error message when trying to send an email: Remote Server returned ‘550 5.7.520 Access …

Get-EXOMailbox

Get-EXOMailbox

The Get-EXOMailbox cmdlet is the new and improved version of Get-Mailbox. To use the Get-EXOMailbox cmdlet you need to install the Exchange Online Management PowerShell module (aka EXO V2). The …