Overlapping emails for active sync

Thanks Mark and Seth..

As part of my test environment troubleshooting ,following rule making mess. After remove rule..all working as expected.no email overlapping....not sure this rule really require?

Can some one explain about this rule and advantages adding to VIP? iam more concern about if remove on my Prod environment not sure how traffic will behave.

when ACCESS_ACL_ALLOWED { set sessionid [ACCESS::session data get "session.user.sessionid"] HTTP::header insert APM_session $sessionid } when HTTP_RESPONSE { if { [string tolower [HTTP::header values "WWW-Authenticate"]] contains "negotiate"} { ONECONNECT::reuse disable ONECONNECT::detach disable NTLM::disable } if {[HTTP::header exists "Transfer-Encoding"]} { HTTP::payload rechunk } }