CkPython

Send an SMTP RSET Command

Demonstrates the Chilkat MailMan.SmtpReset method, which sends an SMTP RSET command to the server. RSET resets the server-side state of the current mail transaction. This example opens a connection, sends RSET, and closes.

Background: During an SMTP session a message is built up across MAIL FROM and RCPT TO commands. If you need to abandon that partially-specified transaction — say an error occurred midway — RSET clears it without dropping the connection, so the same authenticated session can start a fresh message. It's a lightweight way to recover in-session rather than reconnecting.

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import sys
import chilkat

success = False

#  Demonstrates the MailMan.SmtpReset method, which sends an SMTP RSET command to the server.
#  RSET resets the server-side state of the current mail transaction.

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")

#  Open the connection.

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

#  Reset the current SMTP mail transaction.
success = mailman.SmtpReset()
if (success == False):
    print(mailman.lastErrorText())
    sys.exit()

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

print("Sent SMTP RSET.")