Swift

SOCKS4, SOCKS5 Proxy for POP3

Demonstrates how to communicate with a POP3 server through a SOCKS4 or SOCKS5 proxy. Swift

func chilkatTest() {
    var success: Bool = false

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

    // The mailman object is used for receiving (POP3) 
    // and sending (SMTP) email.
    let mailman = CkoMailMan()!

    // To use a SOCKS4 or SOCKS5 proxy, simply set the following
    // properties prior to making any calls that communicate with
    // a POP3 server:
    // The SOCKS hostname may be a domain name or 
    // IP address:
    mailman.socksHostname = "www.mysocksproxyserver.com"
    mailman.socksPort = 1080
    mailman.socksUsername = "myProxyLogin"
    mailman.socksPassword = "myProxyPassword"
    // Set the SOCKS version to 4 or 5 based on the version
    // of the SOCKS proxy server:
    mailman.socksVersion = 5
    // Note: SOCKS4 servers only support usernames without passwords.
    // SOCKS5 servers support full login/password authentication.

    // Set the POP3 server's hostname
    mailman.mailHost = "pop.example.com"

    // Set the POP3 login/password.
    mailman.popUsername = "myLogin"
    mailman.popPassword = "myPassword"

    // Copy the all email from the user's POP3 mailbox 
    // into a bundle object.  The email remains on the server.
    let bundle = CkoEmailBundle()!
    var keepOnServer: Bool = true
    var headersOnly: Bool = false
    // Irrelevent because we are NOT downloading headers-only
    var numBodyLines: Int = 0
    success = mailman.fetchAll(keepOnServer: keepOnServer, headersOnly: headersOnly, numBodyLines: numBodyLines, bundle: bundle)
    if success == false {
        print("\(mailman.lastErrorText!)")
        return
    }

    let email = CkoEmail()!
    var i: Int = 0
    while i < bundle.messageCount.intValue {
        bundle.email(at: i, email: email)

        print("From: \(email.from!)")
        print("Subject: \(email.subject!)")
        i = i + 1
    }

    mailman.pop3EndSession()

}