Mail automation: System.Net.Mail.AlternateViewCollection cannot be serialized (unattended)

Hi

Let’s try with two approaches

  1. First upgrade the mail package in your studio and give a try once

Go to studio → design tab → manage packages-> project dependencies-> upgrade mail activity

  1. Did we give a try with Exchange activity instead of outlook activity
    It’s the same way to access the mail but with few more properties been provided
    It doesn’t require even a outlook to be installed in your machine
    Here you go on what properties need to be passed in exchange activity

Cheers @PeCour