(Swift 3,4,5...) IMAP Capability

Demonstrates how to send the CAPABILITY command to request a listing of capabilities that the IMAP server supports. A capability name which begins with "AUTH=" indicates that the server supports that particular authentication mechanism.

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.

    let imap = CkoImap()!

    // Use TLS
    imap.ssl = true
    imap.port = 993
    var success: Bool = imap.connect("MY-IMAP-DOMAIN")
    if success != true {
        print("\(imap.lastErrorText!)")
        return
    }

    // Authenticate
    success = imap.login("MY-IMAP-LOGIN", password: "MY-IMAP-PASSWORD")
    if success != true {
        print("\(imap.lastErrorText!)")
        return
    }

    // Get the list of capabilities:
    var caps: String? = imap.capability()
    print("Capabilities: \(caps!)")

    // Here is an example of the string returned:
    // * CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN X-GM-EXT-1 
    // UIDPLUS COMPRESS=DEFLATE ENABLE MOVE CONDSTORE ESEARCH UTF8=ACCEPT APPENDLIMIT=35882577
    // LIST-EXTENDED LIST-STATUS

    // Chilkat v9.5.0.58 introduces the HasCapability method to
    // check to see if a particular capability exists:
    if imap.hasCapability("QUOTA", capabilityResponse: caps) == true {
        print("IMAP server supports the QUOTA extension.")
    }

    if imap.hasCapability("IDLE", capabilityResponse: caps) == true {
        print("IMAP server supports IDLE.")
    }

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

}