(Swift) Download Unread Email from IMAP Mailbox

Download unread email messages from an IMAP mailbox.

Note: This example requires Chilkat v11.0.0 or greater.

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

func chilkatTest() {
    var success: Bool = false

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

    let imap = CkoImap()!

    // Connect to an IMAP server.
    // Use TLS
    imap.ssl = true
    imap.port = 993
    success = imap.connect("imap.example.com")
    if success == false {
        print("\(imap.lastErrorText!)")
        return
    }

    // Login
    success = imap.login("admin@chilkatsoft.com", password: "myPassword")
    if success == false {
        print("\(imap.lastErrorText!)")
        return
    }

    // Select an IMAP mailbox
    success = imap.selectMailbox("Inbox")
    if success == false {
        print("\(imap.lastErrorText!)")
        return
    }

    // Find emails marked as seen or not already seen:
    var seenSearch: String? = "SEEN"
    var notSeenSearch: String? = "NOT SEEN"

    // Get the set of unseen message UIDs
    var fetchUids: Bool = true
    let messageSet = CkoMessageSet()!
    success = imap.queryMbx(notSeenSearch, bUid: fetchUids, msgSet: messageSet)
    if success == false {
        print("\(imap.lastErrorText!)")
        return
    }

    // Fetch the unseen emails into a bundle object:
    let bundle = CkoEmailBundle()!
    var headersOnly: Bool = false
    success = imap.fetchMsgSet(headersOnly, msgSet: messageSet, bundle: bundle)
    if success == false {
        print("\(imap.lastErrorText!)")
        return
    }

    // Display the Subject and From of each email.
    let email = CkoEmail()!
    var i: Int = 0
    var numEmails: Int = bundle.messageCount.intValue
    while i < numEmails {
        bundle.email(at: i, email: email)

        print("\(email.getHeaderField("Date")!)")
        print("\(email.subject!)")
        print("\(email.from!)")
        print("--")
        i = i + 1
    }

    // Disconnect from the IMAP server.
    success = imap.disconnect()

}