VB.NET

Send a Raw POP3 Command

Demonstrates the Chilkat MailMan.Pop3SendRawCommand method, which sends a raw command to the POP3 server and returns the server's response. The second argument specifies the charset to use if the command contains non-US-ASCII characters. This example sends the POP3 STAT command within an open session.

Background: POP3 is a simple line-based text protocol — the client sends short commands like STAT, LIST, UIDL, or RETR and the server replies with +OK or -ERR. This method is an escape hatch for issuing a command Chilkat doesn't wrap directly, or a server-specific extension. Note that the session must already be open, since a raw command assumes an authenticated connection.

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Dim success As Boolean = False

'  Demonstrates the MailMan.Pop3SendRawCommand method, which sends a raw command to the POP3
'  server and returns the server's response.  The second argument is the charset used if the
'  command contains non-US-ASCII characters.

Dim mailman As New Chilkat.MailMan

'  Configure the POP3 server connection.
mailman.MailHost = "pop.example.com"
mailman.MailPort = 995
mailman.PopSsl = True
mailman.PopUsername = "user@example.com"
mailman.PopPassword = "myPassword"

success = mailman.Pop3BeginSession()
If (success = False) Then
    Debug.WriteLine(mailman.LastErrorText)
    Exit Sub
End If


'  Send the raw POP3 STAT command, which returns the message count and maildrop size.
Dim response As String = mailman.Pop3SendRawCommand("STAT","us-ascii")
If (mailman.LastMethodSuccess = False) Then
    Debug.WriteLine(mailman.LastErrorText)
    Exit Sub
End If

Debug.WriteLine("STAT response: " & response)

success = mailman.Pop3EndSession()
If (success = False) Then
    Debug.WriteLine(mailman.LastErrorText)
    Exit Sub
End If