(PureBasic) SMTP using SOCKS5, SOCKS4 Proxy

Demonstrates how to communicate with an SMTP server via a SOCKS4 or SOCKS5 proxy.

Chilkat PureBasic Module Download Chilkat PureBasic Module

IncludeFile "CkEmail.pb"
IncludeFile "CkMailMan.pb"

Procedure ChilkatExample()

    ; This example requires the Chilkat API to have been previously unlocked.
    ; See Global Unlock Sample for sample code.

    ; The mailman object is used for sending and receiving email.
    mailman.i = CkMailMan::ckCreate()
    If mailman.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ; To use a SOCKS4 or SOCKS5 proxy, simply set the following
    ; properties prior to making any calls that communicate with
    ; an SMTP server:
    ; The SOCKS hostname may be a domain name or 
    ; IP address:
    CkMailMan::setCkSocksHostname(mailman, "www.mysocksproxyserver.com")
    CkMailMan::setCkSocksPort(mailman, 1080)
    CkMailMan::setCkSocksUsername(mailman, "myProxyLogin")
    CkMailMan::setCkSocksPassword(mailman, "myProxyPassword")
    ; Set the SOCKS version to 4 or 5 based on the version
    ; of the SOCKS proxy server:
    CkMailMan::setCkSocksVersion(mailman, 5)
    ; Note: SOCKS4 servers only support usernames without passwords.
    ; SOCKS5 servers support full login/password authentication.

    ; Set the SMTP server.
    CkMailMan::setCkSmtpHost(mailman, "smtp.chilkatsoft.com")

    ; Set the SMTP login/password (if required)
    CkMailMan::setCkSmtpUsername(mailman, "myUsername")
    CkMailMan::setCkSmtpPassword(mailman, "myPassword")

    ; Create a new email object
    email.i = CkEmail::ckCreate()
    If email.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkEmail::setCkSubject(email, "This is a test")
    CkEmail::setCkBody(email, "This is a test")
    CkEmail::setCkFrom(email, "Chilkat Support <support@chilkatsoft.com>")
    success.i = CkEmail::ckAddTo(email,"Chilkat Admin","admin@chilkatsoft.com")

    ; Call SendEmail to connect to the SMTP server and send.
    ; The connection (i.e. session) to the SMTP server remains
    ; open so that subsequent SendEmail calls may use the
    ; same connection.  
    success = CkMailMan::ckSendEmail(mailman,email)
    If success <> 1
        Debug CkMailMan::ckLastErrorText(mailman)
        CkMailMan::ckDispose(mailman)
        CkEmail::ckDispose(email)
        ProcedureReturn
    EndIf

    ; Some SMTP servers do not actually send the email until 
    ; the connection is closed.  In these cases, it is necessary to
    ; call CloseSmtpConnection for the mail to be  sent.  
    ; Most SMTP servers send the email immediately, and it is 
    ; not required to close the connection.  We'll close it here
    ; for the example:
    success = CkMailMan::ckCloseSmtpConnection(mailman)
    If success <> 1
        Debug "Connection to SMTP server not closed cleanly."
    EndIf

    Debug "Mail Sent!"


    CkMailMan::ckDispose(mailman)
    CkEmail::ckDispose(email)


    ProcedureReturn
EndProcedure