I noticed your response to the subject title above 13/3/2011.
I have tried the exact smtp for Outlook 2010 using the pocket wifi and is has requested a password prior to verifying the outgoing mail server? Where would i find out what this password is?
It sounds like your outlook was previously used with a mail server that required a password.
Vodafone's mail server does not require a password, so all that you need to do is turn off this function. If you are using outlook, the tick box for this will be in: settings>more settings>outoing>require authorization
If you are using a different version of Outlook (Express etc.) let me know and I can help you with this.