XADM: Event ID 1026: Invalid Argument in MTSID

   Event ID: 1026
   Source:   MS ExchangeIS Private
   Category: Transport General

   An error occurred with the following call stack:
   EcTferOutMessage():  0080070057
   EcCreateOMTferOut():  0080070057
   EcMTSIDFromSz():  0080070057
				

MORE INFORMATION

Other than the delimiters the information store uses between parts of the MTSID, the format follows X.400 rules. An MTSID contains four parts:

    Part Name   Stringized form      CharSet      Max Length
    Country           C=             PRINTABLE        3
    Admd              A=             PRINTABLE       16
    Prmd              P=             PRINTABLE       16
    LocalIdentifier   L=             IA5             32
				

The information store simply parses the Stringized form and separates individual parts according to the delimiters (; or /). For information about character sets, refer to the X.400 specifications.

The Stringized form can enclose the parts in quotation marks if the part contains a delimiter character. The information store correctly parses this, and generates the correct om_object for MTSID. However, when the information store gets an MTSID om_object from the message transfer agent (MTA), it does not check to see whether the part contains a delimiter and therefor, encloses it within quotation marks. So, quotation marks should not be used in the parts either.

Normally the part headers (C, A, P, and L) are not case-sensitive. However, if the part header is capital L for LocalIdentifier, then PRINTABLE is assigned as the CharSet instead of IA5 (IA5 is the correct one to use). So, in order to guarantee correct behavior, you should use small "l" for the LocalIdentifier header.