APM rule or access profile to block traffic from Apple devices via HTTP Header filters.

The quest to block Mac clients using the F5 APM access policy or an iRule continue. The access policy (attached or embedded image) did not work as expected.

In addition, one of my colleagues tried to accomplish the same goal by using an iRule.

when HTTP_REQUEST { switch -glob [string tolower [HTTP::header value User-Agent]] { "AppleExchangeWebServices" - "macoutlook" - "mac os x" - "mac+os+x" { reject } default { return } } }

This too, did not work completely. See log from Exchange 2013 server:

POST /EWS/Exchange.asmx - 444 xxxxx\xxxxx 1.1.1.1 AppleExchangeWebServices/287.4.1+Mail/3445.8.2

If anyone has any suggestions they would be greatly appreciated. If additional information is required please let me know.