iCloud Mail does not work with CamHi app.

I am trying to set up Cami Hi on my iphone to send e-mail notifications from my external camera to my e-mail. I have an Icloud mail account and am using the following settings

Server                  imap.mail.me.com

Port                       993

Encrypt              STARTTLS ( I have also tried SSL and TLS)

Auth                     YES

User name       first part of my email address (without the @icloud.com)

Password          I have created a special password and have used this (should this be entered with the hyphens?)

Send to              the first part of my e-mail address without the @icloud.com

Sender              My full e-mail address

I have tried multiple times with many variations but every time I press the test button it fails.

Can you help me please

Thanks

[Re-Titled by Moderator]