我正在尝试连接到Exchange 2003服务器，并阅读邮件。服务器具有基于表单的身份验证。
一切正常，登录POST我得到两个cookie，但是当我尝试第二个请求时，服务器发送一个440状态代码。
我已经包含了请求/响应系列（服务器，通行证，用户名和域名已被更新），希望任何人都可以看到我在哪里犯了错误。
**** REQUEST ******
>[url] => https://<SERVER>/exchweb/bin/auth/owaauth.dll
>[request_header] => POST /exchweb/bin/auth/owaauth.dll HTTP/1.1
> User-Agent: Mozilla/5.0 (Windows NT 6.0; WOW64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.83 Safari/537.1)
> Accept: */*
> Accept-Encoding: gzip
> Cookie: cadata="2CurvKH0Qt2fgnqjSl4/bOTmdobQWv581GKUu5IxzspI+BN525+gHJdhkX8hmWWkLK9KdGWNd5Jd9Fz9/"; sessionid=8d0f4db8-0f3e-4b6d-90d1-bec8cff4fe5f
> Connection: keep-alive
> Host: <CALLING SERVER>
> Content-type: application/x-www-form-urlencoded;charset=UTF-8
> Content-Length: 152
> destination=https%3A%2F%2F<SERVER>%2Fexchange%2F<USER>%2F&username=<DOMAIN>%5C<USER>&password=<PASSWORD>&SubmitCreds=Log+On&forcedownlevel=1&trusted=1
*** RESPONSE ****
< string(421) "HTTP/1.1 302 Moved Temporarily
< Content-Length: 0
< Location: https://<SERVER/exchange/<USER>/
< Server: Microsoft-IIS/6.0
< MicrosoftOfficeWebServer: 5.0_Pub
< X-Powered-By: ASP.NET
< Set-Cookie: sessionid=3456b6f5-abd1-4bf9-8da3-539900f7f10d; path=/
< Set-Cookie: cadata="17DhqZvs6837xRRMiNH2lBcCzo/AnK8Qbqj1mH791xfgUqy+TpnB201UvxcD9IePzaYLkZQfpjR2nOW3D"; HttpOnly; secure; path=/
< Date: Wed, 05 Sep 2012 07:53:12 GMT
*** REQUEST ***
> [url] => https://<SERVER>/exchange/<USER>/Indbakke
> [request_header] => SEARCH /exchange/<USER>/Indbakke HTTP/1.0
> User-Agent: Mozilla/5.0 (Windows NT 6.0; WOW64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.83 Safari/537.1
> Cookie: cadata="17DhqZvs6837xRRMiNH2lBcCzo/AnK8Qbqj1mH791xfgUqy+TpnB201UvxcD9IePzaYLkZQfpjR2nOW3D"; sessionid=3456b6f5-abd1-4bf9-8da3-539900f7f10d
> Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
> Accept-Language: da-DK,da;q=0.8,en-US;q=0.6,en;q=0.4
> Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3
> Connection: keep-alive
> Accept-Encoding: gzip,deflate,sdch
> Host: <CALLING SERVER>
> Depth: 0
> Translate: f
> Content-type: application/xml;
> Content-Length: 297
> <?xml version="1.0"?><a:searchrequest xmlns:a="DAV:" xmlns:s="http://schemas.microsoft.com/exchange/security/">
> <a:sql>
> SELECT "DAV:displayname"
> ,"urn:schemas:httpmail:subject"
> FROM "https://<SERVER>/exchange/USER/Indbakke/"
> </a:sql>
> </a:searchrequest>
*** RESPONSE ***
< HTTP/1.1 440 Login Timeout
< Set-Cookie: sessionid=; path=/; expires=Thu, 01-Jan-1970 00:00:00 GMT
< Set-Cookie: cadata=; path=/; expires=Thu, 01-Jan-1970 00:00:00 GMT
< Content-Type: text/html
< Connection: close
< Content-Length: 43