Hi Vaibhav15211,
Based on your description, could you explain what type of your project? And could you please provide some related code to reproduce the situation?
According to my understanding, I made a code example you can refer to.
You can add Microsoft.Office.Interop.Outlook reference firstly.
Application app = new Application();
NameSpace NS = app.GetNamespace("MAPI");
MAPIFolder objFolder = NS.GetDefaultFolder(OlDefaultFolders.olFolderOutbox);
MailItem objMail = (MailItem)objFolder.Items.Add(OlItemType.olMailItem);
objMail.HTMLBody ="<div>1.<a href=\"" + "link" + "\">Yes</ID></a></div> <div>2.<a href=\"" + "link" + "\">NO</ID></a></dic> <div>3.<a href=\"" + "link" + "\">No action</ID></a> </div>";
objMail.Subject= "employee id(12345)";
objMail.To = "email address";
objMail.Send();
Hope it could be helpful for you.
Best Regards,
Daniel Zhang
MSDN Community Support
Please remember to click "Mark as Answer" the responses that resolved your issue, and to click "Unmark as Answer" if not. This can be beneficial to other community members reading this thread. If you have any compliments or complaints to
MSDN Support, feel free to contact MSDNFSF@microsoft.com.