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outlooktabsoutlook-addinadd-inribbon

Outlook Addin How to Make Custom Tab Show Only in New Message Compose Window

I'm sure there's a simple way to do this that I am overlooking. But, how do you make a custom tab in the Ribbon.xml show up only in the new message compose window? I want to have my own tab so that the ribbon for my groups and buttons will be clean.

I am currently doing a workaround to invalidate the tab control when a new mail item event happens, but there must be a simpler way to do this.

Any suggestions would be appreciated.

It's Outlook 2016 desktop in Windows 10.

Thank you.

Solution

  • Your ribbon XML must specify only Microsoft.Outlook.Mail.Compose - see https://learn.microsoft.com/en-us/visualstudio/vsto/customizing-a-ribbon-for-outlook?view=vs-2019