When I create a new account on my phone or iPad, please add a checkbox to copy the credentials from "Incoming Credentials " to "Outgoing Credentials". Many providers use the same username and password (and host names) for incoming and outgoing. It would be great to just check the box and copy the data.
Also - the ability to store the account information so I don't have to type it in on each device would be great. Possibly have a separate iCloud password to be able to access this information?