(Swift 3,4,5...) Delete Individual Emails from POP3 Mailbox

Demonstrates how to delete individual emails from a POP3 mailbox.

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    // This example assumes 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()!

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

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

    // Set the ImmediateDelete property = false
    // When the DeleteEmail method is called, the POP3 session
    // will remain open and the emails will be deleted all at once
    // when the session closes.
    mailman.immediateDelete = false

    // Download email headers.  
    var bundle: CkoEmailBundle? = mailman.getAllHeaders(1)
    if mailman.lastMethodSuccess == false {
        print("\(mailman.lastErrorText!)")
        return
    }

    var i: Int = 0
    var email: CkoEmail?
    while i < bundle!.messageCount.intValue {
        email = bundle!.getEmail(i)

        print("From: \(email!.from!)")
        print("Subject: \(email!.subject!)")

        // If you decide the email is to be deleted, call DeleteEmail.
        // This marks the email for deletion on the POP3 server.
        var success: Bool = mailman.delete(email)
        if success != true {
            print("\(mailman.lastErrorText!)")
            return
        }

        email = nil

        i = i + 1
    }

    // Make sure the POP3 session is ended to finalize the deletes.
    success = mailman.pop3EndSession()
    if success != true {
        print("\(mailman.lastErrorText!)")
    }

    bundle = nil

    print("Success!")

}