Transport Agent: Discard Mailbox-Full type of NDR

Hello folks, me again. It was some time I didn’t have the opportunity to blog about Transport Agents so I thought to write something about this. This week I have been working with a customer desiring to block specific types of Non-Delivery Reports. In the example, the idea is to block NDR’s such as the…

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Outlook’s slow add-ins resiliency logic and how to always enable slow add-ins

Overview This post explains how to deploy registry settings that would force Outlook to always load a specific add-in. The information in this post only applies to slow (VSTO) add-ins. If Outlook disables your add-in to prevent a crash, this blog post isn’t for you. Requirements Outlook 2013 or 2016. Information Outlook 2013 and 2016’s…

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Configuring and managing Outlook’s Autocomplete Cache

Overview Outlook cannot be configured for selective (criteria based) caching of entries in the autocomplete stream. In addition, individual entries cannot be removed by standard programmatic means. Individual entries can be removed manually using the Outlook client. More information The autocomplete stream is a set of recipient property rows that are saved as a binary…

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PowerShell: Convert ConversationHistory from UserCreated to a Default Folder

Time for a new article, this time talking about Conversation History Retention Policies. I have recently been working with some customers who reported that Retention Policies applied to Conversation History would not get applied. After a lengthily investigation it appeared the issue was due to the “Conversation History” folder was not of type “CommunicatorHistory” but…

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PowerShell: Deploying Outlook ribbon customisations

The Outlook ribbon can be customised by users, and any such changes are stored in an Xml file in the user’s AppData folder (by default, this will be %LocalAppData%\Microsoft\Office – though this can be changed to roaming AppData using a registry key).  Sometimes a company may want to have specific functionality (or custom functionality) available…