LogMeIn Remote Access fails with detect protocol enabled.
LogMeIn Remote Access fails although you have configured not to detect protocol for logmein.com, logmein123.com, and secure.logmein.com.
If you perform a policy trace, you can see connections to LogMeIn through various IP addresses within the range of 216.52.233.0/24.
This is from APNIC Whois Database:
LOGMEIN, INC. INAP-LAX-LOGMEIN-30257 (NET-216-52-233-0-1) 216.52.233.0 - 216.52.233.255
Hence, you can disable protocol detection for requests to the logmein.com domain in another way:
<Proxy>
url.address=216.52.233.0/24 detect_protocol(none)