Before You Install

  1. Confirm that the OS/400 is version V5R1 or above.
  2. Run WRKLIB RJSPOP3 to confirm that you do not already have a copy of the RJSPOP3 library on your iSeries. If it returns no results, continue to step 3. If it does return results, RJSPOP3 has been installed on your iSeries in the past; ask your iSeries administrator whether to upgrade or clear the library and reinstall.
  3. Make sure that:
    1. FTP is running on the iSeries LPAR where you are installing RJSPOP3.
    2. Your account has the required system credentials.
      Note: If your account does not have the required system credentials, use QSECOFR or another account with *ALLOBJ special authority.
  4. On the FTP server, make sure that NAMEFMT is set to 1, not 0.
    Note: NAMEFMT is set to 1 on most FTP servers.
  5. If you are using FTP exit programs, create an exception or temporarily disable them during this installation.
  6. Make sure that your RJSPOP3 license matches the iSeries serial, model, and LPAR numbers. If you do not have a license or do not know if your license matches, view our licensing help or contact RJS Technical Support.
  7. On a Windows system on the same network as the iSeries, download the zipped RJSPOP3 save file.
  8. Unzip RJSPOP3_1.17.ZIP to C:\.
  9. Run CRTSAVF FILE(QGPL/RJSPOP3) to create a temporary file on the iSeries to upload RJSPOP3.LIB to.
  10. Please note that POP/400 does not provide its own POP3 server, but rather assumes that you have one available.


  1. Log in to the iSeries LPAR you are installing RJSPOP3 on:
    1. Bring up a command line:
      1. On older versions of Windows, click Start > Run, type cmd, and click OK.
      2. On newer versions of Windows, click Start, type cmd, and press Enter.
        A Windows Console window opens.
    2. Type ftp, where is the IP address of the iSeries LPAR you are installing RJSPOP3 on.
    3. Type the user name and password of the account you chose in Before You Install 3.2.
      Note: If you cannot log in, most likely either your account has a security restriction on the iSeries or you are using FTP exit programs. In both cases, contact your iSeries administrator to rectify.
  2. Run the following commands:


    quote site namefmt 1

  3. Use the quit command to exit FTP and close the Windows Console window.
    Note: You can now delete RJSPOP3.LIB from C:\.
  4. Restore RJSPOP3 from the uploaded file to its own library:
    1. Log in to the iSeries.
    2. On a command line, run the following command:


Getting Started

  • To obtain or apply a license for POP/400, follow these instructions.
  • To go to the main menu, run the following commands:


  • For more information, see the POP/400 documentation.


Still have questions? We can help. Submit a case to Technical Support.

Last Modified On: December 10, 2016