Swift

Process Large POP3 Mailbox

Demonstrates how to read email from a mailbox that may contain a large number of emails. 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.

    let mailman = CkoMailMan()!

    mailman.mailHost = "pop.example.com"

    mailman.popUsername = "myLogin"
    mailman.popPassword = "myPassword"

    mailman.mailPort = 995
    mailman.popSsl = true

    // Get the list of UIDLs for all emails in the mailbox.
    let stUidls = CkoStringTable()!
    success = mailman.fetchUidls(uidls: stUidls)
    if success == false {
        print("\(mailman.lastErrorText!)")
        return
    }

    // Download each email by UIDL.
    let email = CkoEmail()!

    var count: Int = stUidls.count.intValue
    var i: Int = 0
    while i < count {
        // Download the full email.
        var uidl: String? = stUidls.string(at: i)
        success = mailman.fetch(byUidl: uidl, headerOnly: false, numBodyLines: 0, email: email)
        if success == false {
            print("\(mailman.lastErrorText!)")
            return
        }

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

        i = i + 1
    }

    mailman.pop3EndSession()

}