https_port YY.YY.YY.75:443 cert=/etc/ssl/certs/wildcard.crt key=/etc/ssl/private/wildcard.key cafile=/etc/ssl/certs/wildcard.ca-bundle vhost defaultsite=mail.domain.com

https_port YY.YY.YY.175:443 cert=/etc/ssl/certs/wildcard.crt key=/etc/ssl/private/wildcard.key cafile=/etc/ssl/certs/wildcard.ca-bundle vhost defaultsite=mail.domain.com

cache_peer XX.XX.XX.XX parent 443 0 no-query no-digest proxy-only originserver login=PASS ssl sslversion=4 name=owa front-end-https=auto sslflags=DONT_VERIFY_PEER

acl EXCH dstdomain mail.domain.com webmail.domain.com

cache_peer_access owa allow EXCH
cache_peer_access owa deny all
never_direct allow EXCH

http_access allow EXCH
http_access deny all
miss_access allow EXCH
miss_access deny all

# For broken Nokia clients
ignore_expect_100 on

high_memory_warning 2048 MB
memory_pools off
cache_mem 50 MB