Patent ID: 7937073

Claim:
A method in a wireless portable communication device for use in maintaining appropriate authentication credentials for accessing an electronic mail (e-mail) application for receiving e-mail messages via an e-mail message service provided in a service network, the method comprising the acts of: maintaining, in memory, a default access point name (APN) or network access identifier (NAI); submitting, via a default wireless network, the default APN or NAI for establishing a data session in the default wireless network; receiving, in the data session established via the default wireless network, e-mail messages via the e-mail message service provided in the service network; communicating via a current wireless network; receiving, via the current wireless network, a current APN or NAI responsive to a chance in subscription for the wireless portable communication device from the default wireless network to the current wireless network; storing, in the memory, the current APN or NAI received via the current wireless network; submitting, via the current wireless network, the current APN or NAI for establishing a data session in the current wireless network; and receiving, in the data session established via the current wireless network, e-mail messages via the e-mail message service provided in the service network.