public Task<bool> AuthPopBeforeSmtpAsync(
	string pop3ServerName,
	int pop3ServerPort,
	string pop3AccountName,
	string pop3Password
)

Public Function AuthPopBeforeSmtpAsync ( 
	pop3ServerName As String,
	pop3ServerPort As Integer,
	pop3AccountName As String,
	pop3Password As String
) As Task(Of Boolean)