There are not problem when Outlook send email without attachment or attachment below 100KB size, however it show error 0x800CCC13 "Cannot connect to the newtork....
Microsoft Outlook version 2016 and above has Simplified Account Creation feature, just type in your email and password, it will setup your email account automatic....
There are various type of email account can setup in Outlook, here we show how to create IMAP email at Outlook.