Category Archives: Exchange

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 well as being responsible for the send and receiving of external mail. We used various […]

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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 primary domain and our root domain is more of a resource forest. The group in […]

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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 apps in Exchange to use the proxy server despite trying the following methods ·        Configuring […]

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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 HTTP via a proxy). So we used the following log parser query to gather a […]

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Unable to delete items in modern public folders : “Some Items cannot be deleted. They were either moved or already deleted, or access was denied”

Recently we had reports from a subset of users that they received the following error when they tried to deleted items from a specific set of public folders using their Outlook client: “Some Items cannot be deleted. They were either moved or already deleted, or access was denied” A quick google search revealed that this […]

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The various picture resolutions supported by Exchange 2013 mailboxes

In researching what picture resolutions are supported by Exchange (and Lync 2013/Skype for business) I came across this MS Technet article stating the the following 3 resolutions used in Lync: 48 x 48 : Used if no higher resolution image is selected 96 x 96 : Used in Outlook Web App and Outlook 2013 648 x 648 […]

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Display Names on mail enabled public folders in Exchange 2013

Fun fact, you can have a different display for the same public folder if it’s mail enabled [PS] Get-PublicFolder “\Market Data Services\MDS Bills” | Select Identity, Name | Ft -AutoSize Identity                        Name ——–                        —- \Market Data Services\MDS Bills MDS Bills [PS] Get-MailPublicFolder “\Market Data Services\MDS Bills” | Select Identity, Alias, Displayname, name | FT -AutoSize […]

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I took my Exchange 2013 environment down doing a CU11 prerequisite check

In preparing for my company’s Exchange 2013 CU8 to CU11 uprage a few weekends ago I decided during my lunch break to the run the CU11 installer through the prerequisite check on all our servers just to make sure nothing would get in the way of the install that weekend. This is something I used […]

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Using SHA512 SSL certs with Exchange 2013 on Windows Server 2012 R2 breaks TLS at lower OS rollup levels

We use and internal certificates in my company for Exchange 2013 and recently we employed a company wide mandate to move all internal SSL certificates from SHA1 to SHA512. Our current company patching policy is to apply security patches and only install other patches on an as needed basis. When the time came to renew […]

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Email messages with a blank X-OriginatorOrg header will repeatedly crash the FrontEndTransport Service in EX2013 CU8+

My company recently ran into this issue 2 weeks ago and confirmed with MS that it affects Exchange 2013 CU8, CU9, and CU10 (Exchange 2016 is fine). Basically any message that contains an X-OriginatorOrg header with a null or just white spaces will cause The FrontEndTransport Service to Crash. As long as that header contains […]

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