CkPython

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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import sys
import chilkat

success = False

#  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.

mailman = chilkat.CkMailMan()

#  Configure the SMTP server connection.
mailman.put_SmtpHost("smtp.example.com")
mailman.put_SmtpPort(465)
mailman.put_SmtpSsl(True)

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

success = mailman.SmtpConnect()
if (success == False):
    print(mailman.lastErrorText())
    sys.exit()

print("Connected to the SMTP server.")