CONNECT mx1.example.com:25
====================

$ cut -d' ' --complement -f1 connect.out | sort | uniq -c
   1799 200
      2 200 Connection established
      2 200 Connection Established
    723 200 OK
      3 301
      1 301 D?plac? de fa?on Permanente
      3 301 Found
      1 301 http://www.dooyoo.co.uk
      1 301 http://www.dooyoo.de
      1 301 http://www.narutoproject.xpg.com.brmx1.example.com:25
      1 301 http://www.thestudentroom.co.ukmx1.example.com:25
      1 301 Look Over There
      1 301 Moved
      1 301 Moved Parmanently
      1 301 moved permanently
      3 301 Moved permanently
   1510 301 Moved Permanently
      8 301 MOVED PERMANENTLY
      1 301 Moved Permanently Object
      2 301 Moved Permantenly
      1 301 Moved Permantently
      5 301 mx1.example.com:25
      1 301 Normalize
      2 301 Object Moved
      1 301 Please use www.princeton.edu rather than just princeton.edu
      1 301 See Other
      1 301 Unknown Error
      1 302
    541 302 Found
      6 302 FOUND
      1 302 http://www.nemzetisport.humx1.example.com:25
      3 302 Moved
      1 302 Moved temporarily
     26 302 Moved Temporarily
      4 302 Object moved
      1 302 Object Moved
      1 302 OK
      2 303 See Other
     19 307 Temporary Redirect
     23 400 Bad request
   1837 400 Bad Request
      1 400 Bad Request.
     30 400 BAD_REQUEST
      1 400 Bad Request ( ?f?[?^???????ł??B  )
      4 400 Bad Request ( The data is invalid.  )
      3 400 Bad Request ( 数据无效。  )
      1 400 Host missing from / blank in request headers
      1 400 Invalid HTTP method
     10 400 Invalid Request
      1 400 Invalid Request(Remote IP=10.208.0.254)
      1 400 Invalid Request(Remote IP=66.30.8.132)
     49 400 Invalid URI
      1 400 Mauvaise Requ?te
      1 400 No Host matches server name tribe.net
      1 400 No Host matches server name www.pkplay.com
     17 401 Authorization Required
      1 403 Access Denied
    323 403 Forbidden
      2 403 iG Cache: Caching not allowed.
      1 403 Proxy denies fulfilling the request
      3 403 Terra Cache: Request not allowed.
      1 403 This URL is not allowed to be proxied
      2 404 File not found
      1 404 Not found
    136 404 Not Found
     16 404 Object Not Found
      1 404 Objet introuvable
      1 404 Unknown host
      1 405
      1 405 CONNECT not supported
      6 405 Method CONNECT is disabled on this server.
      1 405 Method not allowed!
   1304 405 Method Not Allowed
      1 405 Method not allowed - go away
      2 405 Non-RFC2616 HTTP method
      1 405 Not allowed
      3 405 Not allowed.
      1 405 Protokollmethode inaktiv.
      1 405 Request Invalido
     12 406 Not Acceptable
      2 410 Gone
      1 417 No cache control present
      1 500 Exception: THIS_IS_LIVE_EXCEPTION
      2 500 Generated error
     38 500 Internal Server Error
     13 500 Server Error
     10 500 Unsupported method
      1 501
     12 501 Method CONNECT is not defined in RFC 2068 and is not supported by the Servlet API
      1 501 method not implemented
      2 501 Method not implemented
     22 501 Method Not Implemented
    269 501 Not Implemented
     13 501 Not Supported
     55 502 Bad Gateway
      1 502 Bad request
     27 502 Proxy Error
      1 503 File is Temporarily Unavailable
      1 503 Server Full
      1 503 Service Not Available
      1 503 Service Temporarily Unavailable
     30 503 Service Unavailable
      2 504 Gateway Time-out
     74 Error: BadStatusLine
    159 Error: error
    410 Error: gaierror
    364 Error: timeout timed out