B4X

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.

Chilkat B4X Downloads

Download Chilkat for B4X

B4X

Dim success As Boolean = 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.

Dim mailman As ChilkatMailMan
mailman.Initialize("mailman")

'  Configure the SMTP server connection.
mailman.SmtpHost = "smtp.example.com"
mailman.SmtpPort = 465
mailman.SmtpSsl = True
mailman.SmtpUsername = "user@example.com"
mailman.SmtpPassword = "myPassword"

'  Open the connection.

success = mailman.OpenSmtpConnection
If success = False Then
    Log(mailman.LastErrorText)
    Return
End If


'  Reset the current SMTP mail transaction.
success = mailman.SmtpReset
If success = False Then
    Log(mailman.LastErrorText)
    Return
End If


success = mailman.CloseSmtpConnection
If success = False Then
    Log(mailman.LastErrorText)
    Return
End If


Log("Sent SMTP RSET.")