DataFlex

Verify SMTP Login (Connect and Authenticate)

Demonstrates the Chilkat MailMan.VerifySmtpLogin method, which tests whether Chilkat can connect to the configured SMTP server and successfully authenticate using the current SMTP authentication settings. This example configures the SMTP host and credentials and verifies login.

Background: This goes one step further than VerifySmtpConnection: after reaching the server it also performs the AUTH exchange with your username and password (or OAuth2 token). It's the ideal preflight check when validating credentials or diagnosing "why won't my mail send?" — a false result after a good connection points squarely at bad credentials or an unsupported auth method rather than a network problem.

Chilkat DataFlex Downloads

Download Chilkat for DataFlex

DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoMailman
    Boolean iLoggedIn

    Move False To iSuccess

    //  Demonstrates the MailMan.VerifySmtpLogin method, which tests whether Chilkat can connect
    //  to the configured SMTP server and successfully authenticate using the current SMTP
    //  authentication settings.

    Get Create (RefClass(cComChilkatMailMan)) To hoMailman
    If (Not(IsComObjectCreated(hoMailman))) Begin
        Send CreateComObject of hoMailman
    End

    //  Configure the SMTP server connection.
    Set ComSmtpHost Of hoMailman To "smtp.example.com"
    Set ComSmtpPort Of hoMailman To 465
    Set ComSmtpSsl Of hoMailman To True
    Set ComSmtpUsername Of hoMailman To "user@example.com"
    Set ComSmtpPassword Of hoMailman To "myPassword"

    //  Test both connectivity and authentication.
    Get ComVerifySmtpLogin Of hoMailman To iLoggedIn

    If (iLoggedIn = True) Begin
        Showln "Successfully connected and authenticated with the SMTP server."
    End
    Else Begin
        Showln "SMTP connect or login failed."
    End



End_Procedure