Configuration

Keep calm and SendAs a Proxy Address

I’m gonna channel the great Etta James:

Ok, I’m back.

I’ve been waiting for this feature for what seems like an eternity–the ability for a mailbox that has multiple proxy addresses to send from any of those addresses.

Background

As most of you probably know, a mailbox can have a whole lot of additional SMTP addresses associated with it (a mailbox can have up to 400 proxy addresses stamped on it). … [ Continue reading ]

Configuration

Requiring multifactor authentication for all Teams users not on trusted networks

 

This week, I’m exploring some of the basics of Conditional Access and using it with Microsoft Teams.

In the “legacy” world (the term we attach to most things that aren’t bleeding edge these days), we typically saw organizations build the high, high walls and dig the deep, deep moats (and occasionally fill them with alligators) to keep the bad guys out.… [ Continue reading ]

Exchange

Exchange Function to Test MRSProxy Endpoint Authentication

This week, I was helping someone troubleshoot authentication issues when hybrid migration mailboxes to Exchange Online.

In order to migrate a mailbox successfully, the EWS endpoint virtual directory should have NTLM/Negotiate authentication method available.

You can quickly see what the endpoint is showing available by using this function:

Function Test-MigrationEndpointAuthentication($Url)
{
  # Build URL
  $Url = $Url.TrimEnd('.').TrimEnd('/').TrimEnd('.')
[ Continue reading ]