Nokia 6820 User Guide 39 Copyright © Nokia 2004MessagesSecure login APOP > On—if your connection requires an encrypted login, set it to On.Otherwise leave it set to Off. Contact your service provider if in doubt. This option is onlyshown if you have selected POP3 as your mailbox type. Using encrypted login enablesincreased security for user names and passwords. It does not increase security for theconnection itself.Retrieve mails—key in the number of e-mails that you want to retrieve at a time.• FONT SIZE SETTINGTo select the font size for reading and writing messages, select Menu > Messages >Message settings > Other settings > Font size.• SERVICE COMMANDSSelect Menu > Messages > Service commands. Key in and send service requests (alsoknown as USSD commands), such as activation commands for network services, to yourservice provider.