Method POP3Client():getNumberOfNewMessages() Foundation
Returns the number of messages available in the mail account.
:getNumberOfNewMessages() --> nMsgCount
The method returns the number of available messages in a mail account.
This method is usually called immediately after :connect() is executed and a connection to the POP3 server is established. The return value of :getNumberOfNewMessages() is the number of messages residing in a user's mailbox on the server which are either not deleted or have arrived since the last connection.
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