One of the most requested features on Microsoft's UserVoice forum was the Support for Dynamic '+' Email Aliases in Office 365. This has been pending since 2017 and Microsoft finally implemented it in September 2020. Woohoo! However, it's not enabled by default in Exchange Online, so we'll have to turn it on. What is '+' … Continue reading Enable ‘+’ plus addressing in Exchange Online
Microsoft announced a while back that they are going to end support for basic authentication in Exchange Online from Oct 13, 2020. This includes connecting via remote PowerShell. So what do we need do in order to connect to Exchange Online using PowerShell? Answer: Use Modern Authentication. Modern authentication is based on the use of … Continue reading Exchange – Connect via PowerShell using Modern Authentication
Whether it be a large group or one that has restricted users, you may need to limit who can send to these mail enabled security groups. In addition, you may even want to enable moderation to allow specific users to approve/deny messages from reaching the members. The good news is that all this can be … Continue reading Exchange Online – Enable group moderation and sending restrictions
We've recently enforced MFA for admin accounts that connect to Exchange (and other O365 Services). This means that in order to connect via PowerShell we need to install the Exchange Online PowerShell module. Instructions provided by Microsoft can be found here: https://docs.microsoft.com/en-us/powershell/exchange/exchange-online/connect-to-exchange-online-powershell/mfa-connect-to-exchange-online-powershell?view=exchange-ps However, when I tried to install the module I kept receiving the error … Continue reading Exchange – Application cannot be started when installing Exchange Online PowerShell Module
Getting a user's calendar folder permissions in Exchange via PowerShell is pretty straight forward as you can just use the standard ':\Calendar' naming convention like below: Get-MailboxFolderPermission -Identity user@domain:\Calendar This works fine if the user's mailbox language is set to English but what if they have it set to something else, like perhaps German? Well … Continue reading Exchange PowerShell – Get calendar folder permissions in any language
So you've got some resource (rooms/equipment) calendars in Exchange that you need to make the calendars public for. You can use PowerShell to accomplish this quite easily. First of all you can get the current calendar publishing information by using the Get-MailboxCalendarFolder cmdlet: Get-MailboxCalendarFolder -Tdentity VIRT-V01:\Calendar Note that if the mailbox's language is not English … Continue reading Exchange PowerShell – Publish Room / Equipment Calendars
Recently I needed to get a bunch of groups from Exchange by their ExternalDirectoryObjectId property. There are many ways to do this and one of the easiest would be to just get the Name (or other unique identifier) by looking up the group in AAD via MSOL PS. However, you can use the -Filter parameter … Continue reading Exchange PowerShell – Evaluating expressions in the Filter parameter
I was working from home today and was trying to connect to Exchange Online via PowerShell. However, every time I tried to connect I would get the following error: System.Xml.XmlException: For security reasons DTD is prohibited in this XML document. To enable DTD processing set the DtdProcessing property on XmlReaderSettings to Parse and pass the … Continue reading Exchange PowerShell – For security reasons DTD is prohibited
