Determines if message is marked to be deleted.

A Boolean value.  

object.MarkDelete [= value]

The MarkDelete Property syntax has these parts:

You should use MarkDelete property to determine if the message should be deleted from the server. No actual commands are sent to the server at this point - messages are only marked internally. When wodPop3 disconnects from the server (meaning you call Disconnect method), wodPop3 will delete messages one by one and finally disconnect.

Do not forget to call Disconnect method if you use MarkDelete! Do not assume that wodPop3 will disconnect by itself (well, it will disconnect at some point) and delete messages for you!