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Configurable options relevant to the X.400 to MIME conversion process
are specified in the channel option file
x400_to_mime_option stored in the PMDF table directory,
i.e., in the file PMDF_TABLE:x400_to_mime_option.
OpenVMS or /pmdf/table/x400_to_mime_option on UNIX.
The format of a channel options file is documented in Section 7.2. The available options are:
BINARY_ENCODING (string)
The BINARY_ENCODING option controls the MIME transfer encoding used when binary format X.400 body parts are converted into MIME body parts. Possible values include BASE64, QUOTED-PRINTABLE, X-UUENCODE and HEXADECIMAL. The standard BASE64 MIME encoding is the default.FROM_X400_DATABASE (string)
The name of the database file containing address mapping rules can be changed on a per-channel basis by using the FROM_X400_DATABASE option in the X400_TO_MIME channel options file. By default the database file is referenced via the PMDF_FROM_X400_DATABASE logical name (OpenVMS) or tailor file option (UNIX).RESTORE_HEADERS (0 or 1)
The RESTORE_HEADERS option provides the inverse of the operation of the SAVE_HEADERS option described below. Specifically, if RESTORE_HEADERS is set to 1 any headers saved in a special X.400 body part will be detected and restored as actual message headers. The format of the body part complies with RFC 2156. The default value for this option is 0, which disables the mapping.RHS_ORDER (0 or 1)
The RHS_ORDER option controls controls the direction in which attribute value pair lists are written into the mailbox part of RFC 822 addresses. The default is 1, which means that attributes are written from right to left. This corresponds to the ordering specified by RFC 2156. In some cases, however, the opposite ordering is required. Note that the read order only affects repeated attributes like Organizational Units.TELETEX_CANCEL (integer)
RFC 2156 specifies that when both a printable-string and teletex-string version of an attribute are present, that the attribute should be represented as
The default setting of TELETEX_CANCEL=0 causes PMDF-X400 to follow this standard. However, the TELETEX_CANCEL option can be used to cause PMDF-X400 to instead discard the teletex-string representation. TELETEX_CANCEL takes a bit-encoded integer value, where each bit controls the retention of teletex-string information for a particular X.400 attribute, as listed in the table below.
printable-string*teletex-string
Bit Value X.400 Attribute 0 1 Common Name 1 2 Organization 2 4 Surname 3 8 Givenname 4 16 Initials 5 32 Generational Qualifier 6 64 Organizational Unit 7 128 Domain Defined Attributes
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