With SMTP and the Post Office Protocol (POP) functionality, you can receive and send OpenVMS mail on your PC. POP is a mail repository that accepts and stores your mail even when the PC is turned off. At your request, the POP server reads mail from your OpenVMS NEWMAIL folder, then moves the mail to your MAIL folder. To send and receive mail on your PC, make sure the system manager has configured the POP server for use on your PC (the POP client system). To set up your POP client account, use one of the following methods: o On networks where maximum security is not required, enter your PC mail application and configure a user name and password into the system. The user name and password pair becomes authorization information for the TCP/IP system, not your POP client system. Your PC client sends the password to the POP server unencrypted. As an added security measure, POP permits only two user name and password authorization attempts per TCP connection. o On networks where maximum security is required, enter your PC mail account and configure a user name and shared-secret password into the system. This method is called the APOP authorization method. With this method, you store a shared-secret password in a one-line file named POP_SECRET.DAT in your default OpenVMS mail directory. You can use the DCL command CREATE or your text editor to create the file and specify a password string, then set the file protection to prevent other users from accessing it. For example: $ SET DEFAULT USER$DISK:[JONES.MAIL] $ CREATE POP_SECRET.DAT xyztancreff <Ctrl/Z> $ SET FILE/PROT=(s,w,g,o:rwed) POP_SECRET.DAT The shared-secret password cannot exceed 500 characters. Each time you enter your PC mail application, the shared- secret string is sent from the PC client to the POP server using an encryption process.