I am writing an Outlook addin which automatically sets the default signature:
Word.Application oWord = new Word.Application();
Word.EmailOptions oOptions;
oOptions = oWord.Application.EmailOptions;
oOptions.EmailSignature.NewMessageSignature = "Standardsignatur";
oOptions.EmailSignature.ReplyMessageSignature = "Standardsignatur";
I am also able to set the default font for normal text msg:
oOptions.PlainTextStyle.Font.Name="Arial";
oOptions.PlainTextStyle.Font.Size=40;
But how can I change the font of a new HTML message in this addin?