Settings for other mobile devices:

You have to make changes in the settings of your movile device's e-mail software to reflect the new servers and new account name format.

We recommend that you choose IMAP as the message transfer protocol on a mobile device to minimize 3G or Edge traffic volume. 
We also strongly recommend you to set the SMTP port value to 587 rather than its default value of 25. This way you will not experience problems if you are located on a network which is blocking port 25 traffic to stop compromised computers sending out spam.

Another important SMTP parameter is "Authentiction required for sending e-mail" (though wording could be different)