I tested with versions 1.9.6, 1.10.4, 1.10.5 and 1.11.0-preview with both Password = “{my-password}” and SecurePassword = new System.Net.NetworkCredential(“”, “{my-password}”).SecurePassword. I used Server = “smtp.office365.com", Port = 587, SecureConnection = Auto.
==> All runs were successful, i.e. the email was successfully sent and received.
Note: the first execution failed with an authentication error but the reason was that I haven’t used my outlook.com account for a while so Microsoft blocked the access to my Inbox. But after I reviewed my activity and confirmed it was me initiating the call, everything worked fine.