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Verify Connectivity to the SMTP Server

Demonstrates the Chilkat MailMan.VerifySmtpConnection method, which tests whether a TCP/IP connection can be established with the configured SMTP server. It verifies connectivity only — it does not authenticate. This example configures the SMTP host and checks whether it can be reached.

Background: When a send fails, it helps to know where it broke. VerifySmtpConnection isolates the first hop — can the client even reach the server on the configured host and port, and complete the TLS handshake? A failure here points at networking, firewall, DNS, port, or certificate issues rather than credentials. Once connectivity is confirmed, VerifySmtpLogin tests the authentication step.

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;  Demonstrates the MailMan.VerifySmtpConnection method, which tests whether a TCP/IP
;  connection can be established with the configured SMTP server.  It verifies connectivity
;  only (it does not authenticate).

$oMailman = ObjCreate("Chilkat.MailMan")

;  Configure the SMTP server connection.
$oMailman.SmtpHost = "smtp.example.com"
$oMailman.SmtpPort = 465
$oMailman.SmtpSsl = True

;  Test connectivity to the SMTP server.
Local $bConnected = $oMailman.VerifySmtpConnection()

If ($bConnected = True) Then
    ConsoleWrite("Successfully connected to the SMTP server." & @CRLF)
Else
    ConsoleWrite("Could not connect to the SMTP server." & @CRLF)
EndIf