Office 365 Hybrid Agent – An Overview

If you have set up a new Hybrid configuration with Office 365 lately, you will notice a new option in the Hybrid Config Wizard, the Hybrid Agent. Before I go into my personal views on this new option and whether you should use it, let me first explain what this agent does. Note: Before I start, I should state that I have not had an opportunity to test the Hybrid agent’s features yet, so there are still a few questions I have about it.…

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Save Sent Items in a Shared Mailbox

Shared Mailboxes make it possible to centralize email for a specific group of employees. If you don’t know what a shared mailbox is, think about the “Contact Us” address most web pages have. Or your company’s “Support” mailbox. Exchange implements these very easily through mailbox delegation. Grant users full access to the mailbox in the Admin Portal and the mailbox will appear in Outlook.…

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Exchange Server Maintenance Functions

Here’s a couple of PowerShell functions that can be used to put an Exchange 2013/2016 server into “maintenance mode.”

There hasn’t been an official maintenance mode for Exchange Server since Server 2010, which introduced DAG capabilities that greatly improved failover and reduced the need for an official maintenance mode for the servers. With Server 2016, the need for putting a server into maintenance mode has returned due to AutoReseed and AutoDAG features that re-mount databases on their primary server if possible.…

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Resolving Outlook Certificate Errors

How to solve problems with Exchange Autodiscover. Certificate Error issues in particular.

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Office 365 Migration – When Do I Need to Use Third Party Tools?

This post may be late in coming, given that most smaller companies have already moved away from on-prem solutions to cloud based services for things like email and file sharing, but I feel like it’s important to stress some of the realities involved in migrating from on-prem to cloud systems. Particularly when migrating to Office 365.…

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Exchange Server EMail Routing – Accepted Domains and Send Connectors

Exchange Server (And Exchange Online) can be a little confusing at times, particularly when we're dealing with mail routing. Internal mail routes are handled almost automatically (especially if you keep all your Exchange servers in the same AD Site, which I recommend), but how do you get it to route email to mail servers *outside* your organization? This post answers all the questions you might have about how to handle Special Mail Routing cases for Exchange.

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Clearing Logs from All Exchange Servers

IHere’s a fun script. There are plenty of scripts that clear logs from an Exchange server, but this one goes the extra mile by doing it on every Exchange server in your environment (CAS, HUB, and MBX). The short explanation for why is that I work with 16+ node Exchange deployments, so setting up a single-server script on multiple servers is a huge pain.…

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Hardening Microsoft Solutions from Attacks

Take a minute to go over this post from Dirk-jan Mollema. Go ahead and read it. I’ll wait…

Did you realize how scary that kind of attack is? As an IT guy who specializes in Exchange server and loves studying security, that article scared the snot out of me. Based on my experience with organizations of all sizes I can say with a good bit of authority that almost every Exchange organization out there is probably vulnerable to this attack.…

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