Can't get interface? fail status: 301

Setup: Ubuntu 64, 10.10
Thunderbird: 3.1.8
lightning 1.0b2
Provider 0.12

I'm just trying to get my calendar from the exchange server. I can't seem to connect or communicate with it?

I tried several alternatives like:
<email address hidden>
<email address hidden>/EWS/Exchange.asmx

they both get redirected to
mail.company.com/owa/

debug log

78845cc0-656b-47cf-a3dd-795ab2e33b07/test2: queueRequest78845cc0-656b-47cf-a3dd-795ab2e33b07/test2: queueRequest

78845cc0-656b-47cf-a3dd-795ab2e33b07/test2: setup req to https://<email address hidden> USER user1

78845cc0-656b-47cf-a3dd-795ab2e33b07/test2: Sending: <?xml version="1.0" encoding="utf-8"?>

<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types" xmlns:m="http://schemas.microsoft.com/exchange/services/2006/messages">

  <soap:Header>

    <t:RequestServerVersion Version="Exchange2007_SP1"/>

  </soap:Header>

  <soap:Body>

    <m:FindItem Traversal="Shallow">

      <m:ItemShape>

        <t:BaseShape>IdOnly</t:BaseShape>

        <t:AdditionalProperties>

          <t:FieldURI FieldURI="calendar:UID"/>

          <t:FieldURI FieldURI="calendar:CalendarItemType"/>

        </t:AdditionalProperties>

      </m:ItemShape>

      <m:ParentFolderIds>

        <t:DistinguishedFolderId Id="calendar"/>

      </m:ParentFolderIds>

    </m:FindItem>

  </soap:Body>

</soap:Envelope>

78845cc0-656b-47cf-a3dd-795ab2e33b07/test2: getInterface

78845cc0-656b-47cf-a3dd-795ab2e33b07/test2: IID: {d974c99e-4148-4df9-8d98-de834a2f6462}

78845cc0-656b-47cf-a3dd-795ab2e33b07/test2: getInterface

78845cc0-656b-47cf-a3dd-795ab2e33b07/test2: IID: {d974c99e-4148-4df9-8d98-de834a2f6462}

78845cc0-656b-47cf-a3dd-795ab2e33b07/test2: getInterface

78845cc0-656b-47cf-a3dd-795ab2e33b07/test2: IID: {09b54ec1-d98a-49a9-bc95-3219e8b55089}

78845cc0-656b-47cf-a3dd-795ab2e33b07/test2: getInterface

78845cc0-656b-47cf-a3dd-795ab2e33b07/test2: IID: {d974c99e-4148-4df9-8d98-de834a2f6462}

78845cc0-656b-47cf-a3dd-795ab2e33b07/test2: getInterface

78845cc0-656b-47cf-a3dd-795ab2e33b07/test2: IID: {09b54ec1-d98a-49a9-bc95-3219e8b55089}

78845cc0-656b-47cf-a3dd-795ab2e33b07/test2: reply

78845cc0-656b-47cf-a3dd-795ab2e33b07/test2:

78845cc0-656b-47cf-a3dd-795ab2e33b07/test2: fail status: 301

78845cc0-656b-47cf-a3dd-795ab2e33b07/test2: getInterface

78845cc0-656b-47cf-a3dd-795ab2e33b07/test2: IID: {09b54ec1-d98a-49a9-bc95-3219e8b55089}

78845cc0-656b-47cf-a3dd-795ab2e33b07/test2: reply

78845cc0-656b-47cf-a3dd-795ab2e33b07/test2:

78845cc0-656b-47cf-a3dd-795ab2e33b07/test2: fail status: 301

etc.....