Several aspects of PMDF MAIL are amenable to system-wide management:

• System-wide editor default. PMDF MAIL on OpenVMS VAX uses EDT as the default editor and TPU on OpenVMS Alpha and I64. To tailor system-wide PMDF MAIL's default editor, use the SET EDITOR/SYSTEM DEFAULT command.
• Controlling which message header lines are displayed. PMDF MAIL allows users to control which message header lines to display, what order in which to display them, and with what rendition (e.g., bold, underlined, etc.). System-wide defaults can also be established through the creation of the file PMDF_MAIL_HEADERS.OPT which should be placed in the PMDF_TABLE: directory. See Section 8.3.3 for details.
• The PMDF_SYSTEM_FLAGS logical. The system-wide logical PMDF_SYSTEM_FLAGS translates to a bit-encoded integer value whose bits have the interpretations shown in Table 8-1.

  Table 8-1 PMDF_SYSTEM_FLAGS Logical

  Bit	Value	Usage
  0	1	If set then node is treated as being equivalent to the local host and the VMS MAIL FROM:, TO:, or CC: address NODE::USER is translated to the RFC 822 address user@local-host. If clear, then NODE::USER is translated to user%NODE@local-host.
  16	65536	If set then captive accounts cannot print to printer queues. This is important in environments where printer queues are used for purposes other than printing.
  17	131072	If set then captive accounts cannot print to terminal queues. This is important in environments where terminal queues are used to feed data to non-printing devices ( e.g., a terminal queue which actually spools command procedures down a LAT port to some other computer).
  18	262144	If set then captive accounts can print to server queues. Only after very careful consideration should this bit ever be set. Picture the following scenario: a captive user creates a command procedure, mails it to him or herself ( e.g., SEND/EDIT), then prints it PRINT/NOHEADER to the server queue which will then execute it.
  19	524288	If set then captive accounts can print to batch queues. As with bit 18, this bit should only be set after very careful consideration of the consequences.
  20	1048576	If set and PMDF MAIL is installed with EXQUOTA privilege, then EXQUOTA privilege will be enabled when composing, extracting, and printing mail messages. Normally, EXQUOTA is only enabled when deleting messages and compressing mail files, and only then when the image is installed with EXQUOTA privilege.

  If PMDF_SYSTEM_FLAGS is not defined then it defaults to the value 0 (all bits clear). In order to install PMDF MAIL with the EXQUOTA privilege, create or edit the file PMDF_COM:SITEIMAGE.DAT and add the following line:

  PMDF_EXE:UA.EXE /OPEN/HEADER/SHARED/PRIV=(SYSPRV,CMKRNL,SYSLCK,EXQUOTA)