23d9bf62__Free__Open_Source_MMS_Gateway__2
[0] pass-thro-headers [1] List [2] 
Set this to a comma-separated list of HTTP response headers that, if received from the service response, should be passed to the MMC (with their corresponding values) unchanged. Note that these headers are merged with other headers generated by Mbuni.
Mbuni: Free, Open Source MMS Gateway
2