Author Archives: mell9185

About mell9185

IT proffesional. Tech, video game, anime, and punk aficionado.

Hunting down personal Microsoft accounts using an corporate Email address in O365

Recently my company started endeavored on setting up an O365 (Office 365) tenant in full Hybrid mode with our on-premise Exchange infrastructure. One of the issues we ran into as we started migrating pilot users was that some of our … Continue reading

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Properly scoping get-inboxrule for a custom RBAC role group

After creating a custom RBAC role in Exchange for our help desk so that they could handle simpler end user requests like mailbox size, conference room permissions, etc. after deploying it we got reports that the get-inboxrule command was not … Continue reading

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Checking Exchange IIS logs for users who downloaded files via OWA

At my work we use a 3rd party application that rides ontop of OWA in Exchange in order to block attachment downloads across certain IP ranges (namely all external access). We recently had an issue with it silently failing and … Continue reading

Posted in Exchange, LogParser | Leave a comment

A single server can serve as a witness for multiple DAGs. However, each DAG requires its own witness directory.

This recently trip us up when bringing up new 2016 servers in our existing 2013 environment. We and used the same witness directory for both DAGS (e.g. \\MGMT500\C$\DAGFileShareWitnesses) under the assumption that the witness directories would be different.  While it … Continue reading

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Sending an email with X-Headers in EWS via powershell

I recently needed to test sending an email via EWS with a bunch of custom X-headers. While I have worked with EWS in PowerShell before I couldn’t find any examples of how to do so but found plenty in Java … Continue reading

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Undocumented Change in 2016 MessageID header behavior

At my company, we recently migrated from 2013 to 2016, but had to keep a 2013 footprint around for support of older Blackberry 5 devices. In our environment, we have a SendMail farm that is an internal open relay as … Continue reading

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How to remove a user from a security group in a different domain in PowerShell

Recently I ran into an issue at my company removing a user in our primary domain from a group in our root domain using the AD cmdlets in PowerShell. All my company’s user, computer, and group objects are in our … Continue reading

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Getting Exchange 2013/2016 Add-ins (Outlook Apps) working through a proxy

Like most companies, my organization uses a proxy for all internet traffic. This presented a problem when we tried using Add-ins for Exchange 2013. At the time we could not figure out how to get the subsystem that pulled down … Continue reading

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Log parser query to get Exchange clients below a certain patch level

At my company we are currently in the early stages of an Exchange 2013 to Exchange 2016 migration and we needed to identify any Outlook clients below a certain patch level (ones we identified as having issues with Mapi over … Continue reading

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“Message Trace” option missing from the Exchange Admin Center in Office 365

Recently I created an RBAC role group for some of my team members so that they could manage a subset of Exchange features in one of our O365 instance. While the Role group I created had the following roles Distribution … Continue reading

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