Tcl

Explicitly Connect to the SMTP Server

Demonstrates the Chilkat MailMan.SmtpConnect method, which explicitly connects to the SMTP server. If SSL/TLS is required by the current property settings, the secure TLS channel is established as part of connecting. This example opens the connection.

Background: SmtpConnect performs just the connect (and TLS handshake) step, without authenticating — useful when you want fine-grained control over the connection lifecycle, or to separate connecting from authenticating (SmtpAuthenticate) for diagnostics. For everyday sending you don't need to call it: SendEmail connects automatically.

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Tcl


load ./chilkat.dll

set success 0

#  Demonstrates the MailMan.SmtpConnect method, which explicitly connects to the SMTP server.
#  If SSL/TLS is required by the current property settings, the secure channel is established
#  as part of connecting.

set mailman [new_CkMailMan]

#  Configure the SMTP server connection.
CkMailMan_put_SmtpHost $mailman "smtp.example.com"
CkMailMan_put_SmtpPort $mailman 465
CkMailMan_put_SmtpSsl $mailman 1

#  Explicitly connect to the SMTP server (does not authenticate).

set success [CkMailMan_SmtpConnect $mailman]
if {$success == 0} then {
    puts [CkMailMan_lastErrorText $mailman]
    delete_CkMailMan $mailman
    exit
}

puts "Connected to the SMTP server."

delete_CkMailMan $mailman