Properties

Every object in MAPI has several properties set. The properties contains information about the object like the name, the unique id, etc... A property tag consists of a type and a unique id, the property type and the property id. A property tag is made as in the following example:

define ('PR_SUBJECT', mapi_prop_tag(PT_TSTRING, 0x0037);
// This will result in a constant PR_SUBJECT with the value 0x001E0037
		

Within the PHP-code all of the properties are defined with a PR_ prefix to indicatie it is a PRoperty. All type codes are prefixed with PT_ (Property Type).

The function mapi_prop_tag accepts the property type and the property id and returns a unique code that indicates the property tag. This code is a simple long where the first 16 bits are the type and the last 16 bits are the ID.

Possible property types are:

PT_NULL, PT_ERROR

Single properties
PT_I2, PT_LONG, PT_FLOAT, PT_DOUBLE, PT_APPTIME, PT_BOOLEAN,
PT_STRING8, PT_SYSTIME, PT_BINARY, PT_CLSID

Multi value properties
PT_MV_I2, PT_MV_LONG, PT_MV_R4, PT_MV_DOUBLE, PT_MV_APPTIME
PT_MV_SYSTIME, PT_MV_STRING8, PT_MV_BINARY, PT_MV_CLSID

Not support:
PT_CURRENCY, PT_UNICODE, PT_OBJECT, PT_I8
PT_MV_CURRENCY, PT_MV_UNICODE, PT_MV_I8

Special properties for rules table:
PT_ACTIONS and PT_SRESTRICTION