Is it possible to have two GWIA agents on the same server and use one solely for authenticated SMTP for IMAP devices? Do I need another domain or can I use the existing GWIA domain?

From what I can find it seems to be possible but I canít seem to find out how to do this in any of the gw documentation.

Our current set up is GWIA and WebAccess under a secondary domain on SLES11 with GW8 and the latest patch/hotpatch. How can I do this?

Thanks for any info.