Hi, 

Trying to set upp my outlook.com email account as a send to address in zoho using outlook's smtp server.

On the settings page in zoho for adding an external from address I can't get the settings to stick.

Custom smtp

Port 587

TLS

Authentication Yes

Username

Password

I can add all these details in but the Update button when clicked produces a spinning icon but I remain on the page when the icon disappears and can't progress.

Any thoughts?

Thanks