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How to add watermark to outlook email using .NET

hi team,

I want to know whether there a method to add watermark to email look like the MS word watermark
image.png (26.3 KB)

If yes, could you provide same sample code.

Thanks regards,

@TommyZhou

There is no direct property or method exposed by API to embed watermark in body of email. However, you can manage it outside API scope to embed that in body of email. Please check the attached example for your convenience.

WatermarkSample.zip (1.2 KB)