Mailflow Co-existence between Hosted Mail and Office 365 during IMAP Migration

This article will explain how to create mail flow coexistence between disparate IMAP source and Exchange Online destination.

Use case:

Customer wants a mailflow co-existence between hosted email e.g. Gmail and Exchange Online during mailbox migration phase.

Customer has on-premises Exchange Server but does not want to create hybrid environment or have a situation where hybrid configuration is not…

Outlook 2016 & Exchange 2007: Not supported

Users connecting to Exchange 2007 mailboxes should not upgrade to Office 2016 as you cannot connect Outlook 2016 to Exchange 2007 using Exchange services. If you only need email, you can use IMAP, provided IMAP support is enabled on the server.

Users who upgrade may see the following error message (assuming the account was not removed from the profile on first run):

The resource that you are…

Exchange PowerShell: How to enumerate and modify Distribution Group properties

Here is another quick Exchange PowerShell post on distribution groups, in it we will look at how to check and modify a particular setting.

A client recently got in touch after a suspect email was sent to all staff in a particular distribution group. Usually only staff can send emails to distribution groups because you need to be authenticated, so I had a quick check of the distribution group’s…

In this post I walk through how to remote wipe your mobile phone using Microsoft Outlook Web Access. This can be useful if you have lost your phone or it had it stolen, or if you have just replaced it with a new one. (more…)

Exchange PowerShell: How to enumerate Distribution Lists, managers and members #PowerShell

Continuing with my series on Exchange PowerShell in this post we will look at how to enumerate distribuition lists, their managers and list their members.

From time to time I’m asked to check or update distribution lists for clients. The PowerShell Cmdlets we are going to be looking at today will allow us to generate a CSV file of distribution lists, their managers and a list of members for each…

Exchange PowerShell: How to check the number of items in the Inbox, Sent Items, Deleted Items, Junk Email #powershell

In this post we will look at how to find out how many items are in a users Inbox, Sent Items, Deleted Items and Junk Email.

Every so often I get a call from a user complaining that Outlook is slow while moving from/to/within their Inbox. More often than not it’s because their Inbox has 1000′s of items in it and the user has never done any house keeping to keep their mailbox in shape.

The…

PowerShell: How to list all SMTP email addresses in Exchange #PowerShell

In my last Exchange PowerShell post i looked at listing users hidden from the Global Address List. In this post we’ll look at listing all email addresses in use in Microsoft Exchange. This can be useful if you are trying to add an email address and you get an error message because it is already in use somewhere.

Although email addresses are most often associated with mailboxes, they can be found…