EmailXtender with GroupWise?

Is EmailXtender supported with Groupwise? Earlier in this forum I saw a reference about shortcutting PST files associated with GW, but can not find anything about GW in the EX documentation.

Are there any documents on how to go about it? The only references I've found within Powerlink are for EMC services to help migrate off of it.

I get that worst case, treat it like an SMTP mail server - but then how could I do shortcutting? Are there any plug-ins?

Thanks..