I spotted something interesting the other day with Enterprise Vault 10.0.x indexing. There is an option on the Enterprise Vault Site Settings to exclude particular words/phrases from being indexed at all.
This is useful for companies that have standard disclaimers or other phrases/paragraphs that shouldn't be indexed (because they would simply cause too much noise when doing searches). To make changes to the indexing exclusions go to the Site Settings, and then the Indexing tab:
Click on 'Exclusions' as highlighted above, and here you can do the exclusion 'maintenance':
You can setup multiple exclusions too, but it's based on the plain text that you want to be excluded. Still, this seems like a great feature and one that I hadn't seen before. Do you implement exclusions like this? Let me know in the comments below.