Retrieve Mail Message (QzmfRtvMailMsg) API

The Retrieve Mail Message (QzmfRtvMailMsg) API retrieves information about an electronic mail message and returns it in the receiver variables provided by the caller. It is only valid to call this API during the processing of the exit program for the Snap-In Call or Track Mail Message Changes exit point.

Authorities and Locks

None.

Required Parameter Group

Mail message identifier

INPUT; CHAR(32)

The variable containing the message identifier for which information is to be retrieved. The mail message identifier is composed of characters A through Z and 0 through 9 only.

Message descriptor attributes

INPUT; ARRAY OF CHAR(*)

This array contains the message descriptor attributes for the data that is to be retrieved. The following table defines a message descriptor attributes array entry.

Table 1. Message Descriptor Attribute Array Entry

Offset		Type	Field
Dec	Hex
0	0	POINTER	Receiver message descriptor pointer
16	10	BINARY(4)	Length of the receiver message descriptor
20	14	CHAR(8)	Format name
28	1C	BINARY(4)	Reserved (must be set to zero)

The message descriptor attribute array entry contains the following:

• Pointers to the message descriptors that are to receive the message information
  
  
• The format name associated with the message descriptor
  
  
• The length of the message descriptor.

If the message descriptors are not long enough to hold all of the available message information, the data is truncated and the number of bytes available is returned. If the length specified for the receiver message descriptor is -1, the pointer to the message descriptor is pointing to a user space that should be automatically extended by the API if it is not large enough for all of the data.

The format name associated with the message descriptor indicates what type of message information is being requested.

Number of message descriptor attributes

INPUT; BINARY(4)

The number of entries in the array of message descriptor attributes. At least one array element must be specified on a call to this API.

Format name

INPUT; CHAR(8)

The variable containing the format name of the parameter list being returned. This field must be set to RTVM0100.

Error code

I/O; CHAR(*)

The structure in which to return error information. For the format of the structure, see Error Code Parameter.

Message Parameter Lists

A message descriptor consists of:

• A common message header section
  
  
• The actual message descriptor format. The following table shows valid message descriptors.
  
  

  Format name	Description
  ORCL0100	Originator recipient entry
  ORGL0100	Originator entry
  ENVL0100	Envelope entry
  RCPL0100	Recipient entry
  RCHL0100	Recipient history entry
  ROAL0100	Report-on address entry
  RPYL0100	Reply-to address entry
  RTAL0100	Report-to address entry
  ATTL0100	Attachment reference entry
  MSGL0100	Message types in the recipient list entries
  EXCH0100	Exit call history entry
  CRTA0100	Creation attributes entry

Message Descriptor Common Header

The following table shows the common header section that is always included at the beginning of a message descriptor. It is used for all of the different formats that can be retrieved using this API. The common header will always be returned, even if there is no message descriptor data to be included. There may be no list items or one or more list items after the common header section.

Table 2. Format of Common Header

Message Descriptor Formats for Retrieve Mail Message

If there is data after the common header, the format associated with the message descriptor is used. There may be multiple instances of the formats following the common header, depending on the size of the parameter list.

ORCL0100 Format (Original Recipient Entry)

ORGL0100 Format (Originator Entry)

ENVL0100 Format (Envelope Entry)

RCPL0100 Format (Recipient Entry)

ROAL0100 Format (Report-on Address Entry)

RPYL0100 Format (Reply-to Address Entry)

RTAL0100 Format (Report-to Address Entry)

ATTL0100 Format (Attachment Reference Entry)

MSGL0100 Format (Message Types in the Recipient List Entry)

RCHL0100 Format (Recipient History Entry)

EXCH0100 Format (Exit Point Call History Entry)

CRTA0100 Format (Creation Attributes Entry)

Field Descriptions

Address type. The type of address that is contained in the entry.

Attachment reference. A reference to an attachment that is associated with the message.

Attachment reference type. The type of attachment that is contained in the entry.

Change indicator. An indicator of whether processing of the exit point program resulted in changes to the message.

Creation message type. The creation message type specified when the MSF message was created.

Diagnostic code. A code that indicates the cause of a problem which caused the delivery of a message to this address to fail. The diagnostic code is assumed to contain the X.400 nondelivery diagnostic code.

Displacement of the attachment reference from the beginning of this ATTL0100 entry. The displacement from the beginning of this entry to the attachment reference in this entry.

Displacement of the envelope from the beginning of this ENVL0100 entry. The displacement from the beginning of this entry to the envelope in this entry.

Displacement of the origin address from the beginning of this ORGL0100 entry. The displacement from the beginning of this entry to the origin address in this entry.

Displacement of the original recipient address from the beginning of this ORCL0100 entry. The displacement from the beginning of this entry to the original recipient address in this entry.

Displacement of the recipient address from the beginning of this RCPL0100 entry. The displacement from the beginning of this entry to the recipient address in this entry.

Displacement of the reply-to address from the beginning of this RPYL0100 entry. The displacement from the beginning of this entry to the reply-to address in this entry.

Displacement of the report-to address from the beginning of this RTAL0100 entry. The displacement from the beginning of this entry to the report-to address in this entry.

Displacement of the report-on address from the beginning of this ROAL0100 entry. The displacement from the beginning of this entry to the report-on address in this entry.

Displacement of the snap-in provided information (SPIN) of this RCHL0100. The displacement from the beginning of this entry to the snap-in provided information (SPIN). (There are fields for RCPL0100 and RCHL0100 entries.)

Distribution type. The type of distribution associated with each recipient entry. The possible values are:

Envelope. A string of data representing information about the message, aside from the attachments and its recipients.

Envelope type. The type of envelope that is contained in the entry.

Exit program number. A number assigned to the exit program when it is registered using the registration facility. This is the number in effect at the time the exit program was called.

Format name. The content and format of the information provided for each message parameter. The possible values are:

Length of address. The length of address that is contained in the entry. The maximum length of an address is 1024 bytes.

Length of attachment reference. The length in bytes of the attachment reference that is contained in the entry.

Length of envelope. The length of envelope that is contained in the entry.

Length of origin address. The length of the origin address for this entry. The maximum length of an origin address is 1024 bytes.

Length of original recipient address. The length of the original recipient address for this entry. The maximum length of an original recipient address is 1024 bytes.

Length of receiver message descriptor. The length in bytes of the message descriptor that is being pointed to by the pointer to the message descriptor. The maximum length of a message descriptor is 16 million bytes.

Length of recipient address. The length in bytes of the recipient address. The maximum length of a recipient address is 1024 bytes.

Length of reply-to address. The length in bytes of the reply-to address. The maximum length of a reply-to address is 1024 bytes.

Length of snap-in provided information (SPIN). The length in bytes of the snap-in provided information (SPIN). The maximum length of the SPIN is 256 bytes.

Length of this entry. The length in bytes of this entry. This is used to get to the next entry.

Length of this message descriptor. The length in bytes of this message descriptor. The maximum length of a message descriptor is 16 million bytes.

Message descriptor data. One or more parameter list formats that follow the common header. Message descriptors are made up of a common header and a list of entries. The format of each entry in the list is defined by the format name associated with the message descriptor, which is located in the common header. The number of entries in the list is also defined in the common header.

Message type. The type of message that is associated with the entry.

Number of bytes available for this message descriptor. The number of bytes available in the space where the mail server framework puts the information being retrieved.

Number of entries available for this message descriptor. The total number of entries available for this message descriptor indicates the number of entries that would be returned if the length of the message descriptor is greater than or equal to the number of bytes available for this message descriptor.

Offset of the first entry in the message descriptor. The offset from the beginning of this message descriptor to the first entry in the list of entries.

Origin address. A string that represents the address associated with the originator of the message. The contents and format of the string are not defined by the mail server framework. It is assumed that the address type associated with the origin address defines the contents of the origin address field.

Origin address coded character set identifier (CCSID). The CCSID provided for the origin address. Valid values for the CCSID are 1 through 65533 and 65535.

Original recipient address. A string that represents the address associated with the original recipient of the message. The contents and format of the string are not defined by the mail server framework. It is assumed that the address type associated with the original recipient address defines the contents of the original recipient address field.

Original recipient address coded character set identifier (CCSID). The CCSID provided for the original recipient address. Valid values for the CCSID are 1 through 65533 and 65535.

Qualified mail server framework exit program name. The qualified program name of the program that was called at the mail server framework exit point.

Reason code. A code that identifies reasons associated with the message delivery to this address. In the case of a nondelivery entry, this field would contain the reason the delivery of this message to this recipient failed. The reason code is assumed to contain the X.400 nondelivery reason code.

Receiver message descriptor pointer. A space pointer that points to a message descriptor. A message descriptor is used to pass information which describes the message.

Recipient address. A string that represents the address associated with a recipient of the message. The contents and format of the string are not defined by the mail server framework. It is assumed that the address type associated with the recipient address defines the contents of the recipient address field.

Recipient address coded character set identifier (CCSID). The CCSID provided for the recipient address. Valid values for the CCSID are 1 through 65533 and 65535.

Recipient status flag. A flag which when set to 1 indicates that this entry has been replaced by either one or multiple entries. Entries with this flag set to 1 are referred to as parents. Entries with this flag set zero are referred to as children.

Reply requested flag. Whether this original recipient should reply to the message. The possible values are as follows:

Reply-to address. A string that represents the address to be replied to. The contents and format of the string are not defined by the mail server framework. It is assumed that the address type associated with the reply-to address defines the contents of the reply-to address field.

Reply-to address coded character set identifier (CCSID). The CCSID provided for the reply-to address. Valid values for the CCSID are 1 through 65533 and 65535.

Report-on address. A string which represents the address to be reported on. The contents and format of the string are not defined by the mail server framework. It is assumed that the address type associated with the report-on address defines the contents of the report-on address field.

Report-on address coded character set identifier (CCSID). The CCSID provided for the report-on address. Valid values for the CCSID are 1 through 65533 and 65535.

Report-to address. A string which represents the address to be reported to. The contents and format of the string are not defined by the mail server framework. It is assumed that the address type associated with the report-to address defines the contents of the report-to address field.

Report-to address coded character set identifier (CCSID). The CCSID provided for the report-to address. Valid values for the CCSID are 1 through 65533 and 65535.

Reserved. All reserved fields must be set to zero.

Return code from the exit program. The return code returned by the user exit program.

Snap-in provided information (SPIN). An area where snap-ins can store information that other snap-ins may use. SPIN provides a place where information relating to a specific recipient can be stored and used by snap-ins in the same or different exit points. This is completely user-defined and user-interpreted data.

Status. The status associated with each recipient entry. The possible values are:

Timestamp of when the message was created. The timestamp of when the message was created. The format of the timestamp is CYYMMDDHHMMSSMMM. The fields are defined in the order that they occur in the string.

Timestamp of when the exit program was called. The timestamp of when the exit point was called. The format of this timestamp is the same as that of the timestamp of when the message was created.

Timestamp of when the exit program returned. The timestamp of when the exit point returned. The format of this timestamp is the same as that of the timestamp of when the message was created.

Unique identifier. A unique identifier that differentiates each item within a particular list. Identifiers are generated for each list item when the Create Mail Message (QzmfCrtMailMsg) API has successfully completed. These unique identifiers are temporary and may change as the mail service processes a message. List entries are placed in message descriptors such that unique identifiers are in ascending order.

Unique identifier of parent entry. The unique identifier associated with the parent entry of this entry. A parent entry is an entry that had been replaced by a single or multiple entries.

Unique identifier of referenced entry. The unique identifier of another ORCL0100, ORGL0100, ENVL0100, RTAL0100, ROAL0100, RPYL0100, or ATTL0100 entry that this entry refers to. This field can be used to create entry cross-references as new entries are added.

Error Messages