CkPython

Send an Email via SMTP

Demonstrates the Chilkat MailMan.SendEmail method, which sends a single Email object through the configured SMTP server. This example configures the SMTP connection, builds a message, and sends it.

Background: SMTP (Simple Mail Transfer Protocol) is the protocol for sending mail. The typical flow is: connect to the server, authenticate, then hand over the message with MAIL FROM, RCPT TO, and DATA. SendEmail wraps all of that: you build an Email with subject, recipients, and body, and Chilkat renders it to MIME and delivers it. Modern submission commonly uses implicit TLS on port 465 (SmtpSsl = true).

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import sys
import chilkat

success = False

#  Demonstrates the MailMan.SendEmail method, which sends a single Email object through the
#  configured SMTP server.

mailman = chilkat.CkMailMan()

#  Configure the SMTP server connection.
mailman.put_SmtpHost("smtp.example.com")
mailman.put_SmtpPort(465)
mailman.put_SmtpSsl(True)
mailman.put_SmtpUsername("user@example.com")
mailman.put_SmtpPassword("myPassword")

#  Build the email to send.
email = chilkat.CkEmail()
email.put_Subject("Test email from Chilkat")
email.put_From("alice@example.com")
email.AddTo("Bob","bob@example.com")
email.put_Body("Hello, this is a test message.")

#  Send the email.

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

print("Email sent.")

#  Note: Explicitly connecting/authenticating is optional.  Chilkat MailMan automatically
#  connects and authenticates -- using the property settings above -- whenever a server
#  operation requires it.  Calling the explicit connect/authenticate methods can still be
#  helpful to determine whether a failure occurs while connecting or while authenticating.