TREX is not indexing MIME Types

Hi Gurus,

I am trying to send documents which are attached to CRM Transactions to TREX using Software Agent Framework (Component CRM-BF-SAF).

I finally managed to send the document urls to TREX but the preprocessing in TREX failed:

1138690368 2009-10-22 12:24:26.965 e preprocessor Preprocessor.cpp(01077) : HTTPHEAD failed for URL http://sapserver:80/sap/bc/contentserver/... with Httpstatus 500

Any ideas who to solve or at least debug the problem?

Thanks

Benedikt

PS: Is there a forum for TREX related questions???