MessageList Event
Fired for every message listed by ListMessageSizes and/or ListMessageUIDs .
Syntax
ppop.on('MessageList', listener: (e: {readonly messageNumber: number, readonly messageUID: string, readonly messageSize: number}) => void )
Remarks
When ListMessageSizes is called, MessageSize is valid, and MessageUID is always an empty string.
When ListMessageUIDs is called, MessageUID is valid, and MessageSize is 0.