EXO – Exchange Online
There are a multitude of online tools that help diagnose issues with various mail services, but understanding what these tools actually check is valua… Read the rest “How to Use NsLookup To Check DKIM Record”
Planning to deploy Office 365 and integrate with your on-premises Exchange infrastructure? Great! While running the Exchange Hybrid Configuration Wi… Read the rest “Microsoft Teams Source IP Address Used Connecting to On-Premises Exchange”
When discussing network configuration for Office 365, there will be a series of issues and challenges that need to be addressed. Ideally this is all … Read the rest “The Way Things Were–EOP IP Ranges October 2018”
Previously we looked at the Office 2010 client and how it used Autodiscover to detect Exchange Online (EXO) mailbox settings. Outlook 2010 is no longe… Read the rest “Office 365 Autodiscover Lookup Process–Revisited”
A recent discussion revolved around adding domains to Azure, and how that would manifest iteslf in Office 365 and Azure. This was a customer where on… Read the rest “Add Domain to Azure, What Is Its EXO Status?”
This is a topic that still comes up when doing email investigations. After there has been an issue, we want to perform analysis to determine what may… Read the rest “Exchange Online Transport Rule Audit”
As more people are starting to use the Exchange Online V2 module (yay!), there are some new and different issues appearing.
In this case, the command t… Read the rest “Exchange Online App-Only Authentication Error AADSTS70011 Invalid Scope”
When running /PrepareSchema in an Exchange organisation with an existing Exchange Hybrid deployment you may run into an error which states:
"A hybrid d… Read the rest “TenantOrganizationConfig Required When Preparing Active Directory”
When running Exchange setup or the Exchange Hybrid Configuration Wizard (HCW), I always recommend looking at the version information that is shown on … Read the rest “Exchange HCW Detects “Wrong” Version”
The below are some of the older Office 365 welcome pages, thought it might be fun to make the screenshots available for reference. They are from an o… Read the rest “Office 365 Welcome Pages – Circa 2015”