The system and method are for provisioning an electronic mail (email) account for allowing access to an electronic mailbox to retrieve email. A mobile office platform includes a configuration module and a communications module which are operative for accessing an electronic mailbox. The communications module is to receive email address parameters of the user and transmit a domain name system (DNS) query to the Internet for returning mail exchange (MX) records, including email domain names, corresponding to the email address parameters of the user. The configuration module is to process returned MX records to determine candidate configuration parameters for accessing the email account of the user to retrieve user email. The configuration module is to determine candidate configuration parameters based upon expanding a plurality of prioritized email domain names of the returned MX records.