TIdMessagePriority is an enumerated type used to describe the priority of a message. TIdMessagePriority can contain one of the following values:
- mpHighest - The message should be given the highest priority.
- mpHigh - This message should be given a high priority.
- mpNormal - This message should be given the normal priority. This is the default value.
- mpLow - This message should be given a low priority.
- mpLowest - This message should be given the lowest priority.
TIdMessagePriority is used by TIdMessage to represent the value of either the "Priority:" or "X-Priority:" headers in a RFC 822 message.