Lua Requires Chilkat v11.0.0+

How to Download Messages in MessageSet One at a Time

See more IMAP Examples

If a message set contains a huge number of emails, it's NOT a good idea to try to download all at once into an email bundle using a method such as FetchBundle. It's better to iterate over the messages in the set to download one by one. Lua

    -- In the following call to loadlib, change the path (./chilkat.dll) to the relative or absolute directory where the chilkat.dll, chilkat.so, or chilkat.dylib is located.
    chilkat = assert(package.loadlib("./chilkat.dll", "luaopen_chilkat"))()
    print(chilkat._VERSION)

    local success = false

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

    local imap = chilkat.newImap{}

    --  Connect using TLS.
    imap:setSsl(true)
    imap:setPort(993)
    success = imap:Connect("imap.example.com")
    if success == false then
        print(imap:LastErrorText())

    end

    --  Authenticate
    success = imap:Login("email_account_login","email_account_password")
    if success == false then
        print(imap:LastErrorText())

    end

    --  Select an IMAP mailbox
    success = imap:SelectMailbox("Inbox")
    if success == false then
        print(imap:LastErrorText())

    end

    --  Search for messages and return a set of matching messages.
    --  (This example will simply search for ALL messages.)
    local fetchUids = true

    local messageSet = chilkat.newMessageSet{}
    success = imap:QueryMbx("ALL",fetchUids,messageSet)
    if success == false then
        print(imap:LastErrorText())

    end

    print("Number of messages = ", messageSet:Count())

    local email = chilkat.newEmail{}
    local i = 0
    while i < messageSet:Count() do
        success = imap:FetchEmail(false,messageSet:GetId(i),fetchUids,email)
        if success == false then
            print(imap:LastErrorText())

        end

        print(email:From(), "; ", email:Subject())

        i = i + 1
    end

    print("OK")