Swift

Delete a POP3 Message via an Email Object

Demonstrates the Chilkat MailMan.DeleteEmail method, which deletes a POP3 message using the UIDL stored in the X-UIDL header of an Email object. The email must contain an X-UIDL header, which it does after being fetched from the server. This example fetches a message and then deletes it.

Background: When Chilkat downloads a POP3 message it records the server UIDL in an X-UIDL header on the Email object. DeleteEmail uses that header to tell the server which message to remove — a natural "process then delete" flow: fetch a message, act on it, then delete it. As always in POP3, the deletion is only committed when the session ends (unless ImmediateDelete is set).

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Swift


func chilkatTest() {
    var success: Bool = false

    //  Demonstrates the MailMan.DeleteEmail method, which deletes a POP3 message using the UIDL
    //  stored in the X-UIDL header of an Email object.  The email must contain an X-UIDL header
    //  (as it does after being fetched from the server).

    let mailman = CkoMailMan()!

    //  Configure the POP3 server connection.
    mailman.mailHost = "pop.example.com"
    mailman.mailPort = 995
    mailman.popSsl = true
    mailman.popUsername = "user@example.com"
    mailman.popPassword = "myPassword"

    //  Fetch a message (headers are enough; the X-UIDL header identifies it on the server).
    let email = CkoEmail()!

    success = mailman.fetchOne(headerOnly: true, numBodyLines: 0, msgNum: 1, email: email)
    if success == false {
        print("\(mailman.lastErrorText!)")
        return
    }

    //  Delete that message using its X-UIDL header.
    success = mailman.deleteEmail(email: email)
    if success == false {
        print("\(mailman.lastErrorText!)")
        return
    }

    //  Unless the ImmediateDelete property is set to true, the message is only marked for
    //  deletion.  End the POP3 session (which sends the QUIT command) to commit the deletion.
    success = mailman.pop3EndSession()
    if success == false {
        print("\(mailman.lastErrorText!)")
        return
    }

    print("Deleted the email from the POP3 server.")

    //  Note: Explicitly connecting/authenticating is optional.  Chilkat MailMan automatically
    //  connects and authenticates -- using the property settings above -- whenever a server
    //  operation requires it.  Calling the explicit connect/authenticate methods can still be
    //  helpful to determine whether a failure occurs while connecting or while authenticating.

}