I'm seeing lots of blocks on "courier.push.apple.com" in my web filter log. I've added an exception for the url in the filtering profile as well as in the filtering options. Below is a line from the log. What does the "host not found" error mean?
2015:01:22-17:34:58 hpch httpproxy[5494]: id="0002" severity="info" sys="SecureWeb" sub="http" name="web request blocked" action="block" method="CONNECT" srcip="10.10.10.160" dstip="" user="" ad_domain="" statuscode="502" cached="0" profile="REF_DefaultHTTPProfile (Default Web Filter Profile)" filteraction="REF_DefaultHTTPCFFAction (Default content filter action)" size="0" request="0xe25db800" url="courier.push.apple.com/" referer="" error="Host not found" authtime="0" dnstime="243" cattime="0" avscantime="0" fullreqtime="218383" device="0" auth="0" ua="" exceptions="av,content,url,ssl,mime,cache,fileextension,size,patience"
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