EOP Accepted Domain silently modified

It seems that a couple of weeks ago my standalone Exchange Online Protection (EOP) configuration was changed without me being involved. Basically, it looks like my default Accepted Domain was changed from type “Internal Relay” to “Authoritative” without my knowledge or consent. The first I knew of this was when I noticed my on-premises mail… Read More »

Dump a list of all schemaIDGUIDs with Powershell

There are well known methods for setting Access Control Entries (ACEs) on Active Directory objects using Powershell. One example is the following:   http://blogs.msdn.com/b/adpowershell/archive/2009/10/13/add-object-specific-aces-using-active-directory-powershell.aspx   The method relies on you knowing the schemaIDGUID of the schema object classes you are working with (e.g. User, Computer, Group). Unless you know your way around AD it’s not… Read More »

MSExchange Mailbox Replication Error 1121

I recently had a interesting issue where I was seeing the 1121 error below in the Application log on one of my Exchange 2013 servers every minute.   Log Name: Application Source: MSExchange Mailbox Replication Date: 14/01/2015 2:23:34 p.m. Event ID: 1121 Task Category: Request Level: Error Keywords: Classic User: N/A Computer: ex1.contoso.com Description: The… Read More »

[ERROR] Could not find the Exchange Mailbox Administrators Universal Security Group through its well-known GUID

I came across a weird error the other day while running Exchange Server 2013 CU6 setup with the /PrepareAD switch.  The error (from the Exchange setup logs) was this: [12/02/2014 01:14:16.0727] [2] [ERROR] Could not find the Exchange Mailbox Administrators Universal Security Group through its well-known GUID 29a962c2-91d6-4ab7-9e06-8728f8f842ea.  Please make sure that Setup /prepareAD has… Read More »

Nokia Lumia 930 Review

The first thing that struck me after lifting the phone out of the box was how heavy it was. My Samsung S3 (the sole victim of a fatal hit-and-run incident recently) was much lighter. It feels substantial, solid and it definitely won’t bend in your pocket! I wouldn’t want to drop it though. The brushed… Read More »