Xbase++

Send a Raw SMTP Command

Demonstrates the Chilkat MailMan.SmtpSendRawCommand method, which sends a raw command to the SMTP server and returns the server's response. The second argument specifies the charset to use if the command contains non-US-ASCII characters, and the third indicates whether to base64-encode the command before sending. This example sends a raw NOOP on an open connection.

Background: SMTP is a line-based text protocol (EHLO, MAIL FROM, RCPT TO, DATA, QUIT), so a raw-command hook lets you issue anything Chilkat doesn't wrap — a server extension, or a custom step during a manual auth exchange. The base64 flag exists because some SMTP exchanges (notably AUTH challenge/response) require the argument to be base64-encoded on the wire.

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LOCAL nSuccess
LOCAL oMailman
LOCAL cResponse

nSuccess := 0

//  Demonstrates the MailMan.SmtpSendRawCommand method, which sends a raw command to the SMTP
//  server and returns the server's response.  The 2nd argument is the charset used if the
//  command contains non-US-ASCII characters, and the 3rd indicates whether to base64-encode
//  the command before sending.

oMailman := CreateObject("Chilkat.MailMan")

//  Configure the SMTP server connection.
oMailman:SmtpHost := "smtp.example.com"
oMailman:SmtpPort := 465
oMailman:SmtpSsl := 1
oMailman:SmtpUsername := "user@example.com"
oMailman:SmtpPassword := "myPassword"

nSuccess := oMailman:OpenSmtpConnection()
IF (nSuccess == 0)
    ? oMailman:LastErrorText
    oMailman:destroy()
    RETURN
ENDIF

//  Send the raw SMTP NOOP command (not base64-encoded).
cResponse := oMailman:SmtpSendRawCommand("NOOP", "us-ascii", 0)
IF (oMailman:LastMethodSuccess == 0)
    ? oMailman:LastErrorText
    oMailman:destroy()
    RETURN
ENDIF

? "NOOP response: " + cResponse

nSuccess := oMailman:CloseSmtpConnection()
IF (nSuccess == 0)
    ? oMailman:LastErrorText
    oMailman:destroy()
    RETURN
ENDIF

oMailman:destroy()