I am getting an error message when reverse proxy to outlook web access from cache.log: 2009/09/20 02:00:52| ctx: exit level 0 2009/09/20 02:00:52| ctx: enter level 0: 'https://webmail.xxyy.com/exchange/mn-vw' 2009/09/20 02:00:52| http.cc(573) HttpStateData::cacheableReply: unexpected http status code 440 2009/09/20 02:00:53| ctx: exit level 0 2009/09/20 02:00:53| ctx: enter level 0: 'https://webmail.xxyy.com/exchange/mn-vw/' 2009/09/20 02:00:53| http.cc(573) HttpStateData::cacheableReply: unexpected http status code 207 2009/09/20 02:00:53| ctx: exit level 0 2009/09/20 02:00:53| ctx: enter level 0: 'https://webmail.xxyy.com/exchange/mn-vw/' 2009/09/20 02:00:53| http.cc(573) HttpStateData::cacheableReply: unexpected http status code 207 2009/09/20 02:00:53| ctx: exit level 0 2009/09/20 02:00:53| ctx: enter level 0: 'https://webmail.xxyy.com/exchange/mn-vw/Inbox' 2009/09/20 02:00:53| http.cc(573) HttpStateData::cacheableReply: unexpected http status code 207 I ran the following command on the store.log trying to get the list of items item throwing 207 errors: more store.log |grep 207 | awk ' { print $12 }' | sort | uniq -c 5 BMOVE 16 BPROPPATCH 52 GET 3 OPTIONS 14 POLL 67 POST 1833 PROPFIND 1 PROPPATCH 2118 SEARCH 7 SUBSCRIBE 3874 X-MS-ENUMATTS I tried to make several modifications to my config to see if the errors would go away to no avail cache_mem 8 MB cache_dir ufs /var/squid 2000 16 256 https_port 443 key=/etc/squid3/key.crt cert=/etc/squid3/ssl.key accel vhost cache_peer 192.168.50.25 parent 443 0 no-query originserver login=PASS ssl sslflags=DONT_VERIFY_PEER name=webmail.xxyy.com acl OWA dst webmail.xxyy.com never_direct allow OWA http_access allow OWA http_access deny all miss_access allow OWA miss_access deny all #Added to address odd error maximum_object_size 0 KB minimum_object_size 0 KB extension_methods SEARCH SUBSCRIBE PROPFIND PROPATCH MKCOL RPC_IN_DATA RPC_OUT_DATA X-MS-ENUMATTS #debug_options ALL,5 Version and compile flags: Squid Cache: Version 3.0.STABLE19 configure options: '--build=i486-linux-gnu' '--prefix=/opt' '--includedir=${prefix}/include' '--mandir=${prefix}/share/man' '--infodir=${prefix}/share/info' '--sysconfdir=/etc' '--localstatedir=/var' '--libexecdir=${prefix}/lib/squid3' '--disable-maintainer-mode' '--disable-dependency-tracking' '--srcdir=.' '--datadir=/usr/share/squid3' '--sysconfdir=/etc/squid3' '--mandir=/usr/share/man' '--with-cppunit-basedir=/usr' '--enable-inline' '--enable-async-io=8' '--enable-storeio=ufs,aufs,diskd,null' '--enable-removal-policies=lru,heap' '--enable-delay-pools' '--enable-cache-digests' '--enable-underscores' '--enable-icap-client' '--enable-follow-x-forwarded-for' '--enable-auth=basic,digest,ntlm' '--enable-basic-auth-helpers=LDAP,MSNT,NCSA,SASL,SMB,getpwnam,multi-domain-NTLM' '--enable-ntlm-auth-helpers=SMB' '--enable-digest-auth-helpers=ldap,password' '--enable-external-acl-helpers=ip_user,ldap_group,session,unix_group,wbinfo_group' '--with-filedescriptors=65536' '--with-default-user=proxy' '--enable-epoll' '--enable-linux-netfilter' '--enable-ssl' '--with-openssl=/usr' 'build_alias=i486-linux-gnu' On a parse I see the following 2009/09/20 08:08:20| Extension method 'PROPATCH' added, enum=30 2009/09/20 08:08:20| Extension method 'RPC_IN_DATA' added, enum=31 2009/09/20 08:08:20| Extension method 'RPC_OUT_DATA' added, enum=32 2009/09/20 08:08:20| Extension method 'X-MS-ENUMATTS' added, enum=33 2009/09/20 08:08:20| Extension method 'BPROPATCH' added, enum=34
