We are trying to capture email replies to StickyNote emails that get sent out to the recipient of a stickynote, so that the user's replies will be stored in NetSuite along with the StickyNote they're replying to. Prefer if their reply creates another stickynote just as it would if they replied via the NetSuite UI.

In NetSuite sandbox:

I created a StickyNote, and the recipient received an email of the StickyNote, and when the user clicks Reply in their email client, the "To" address populates with "Aaron McCausland messages.xxxxxxx_SB2.xxxxxxx.50e65344b6@xxxxxxx-sb2.email.netsuite.com"

This looks like an email capture address to me, but neither the Sticky Note record, nor the Customer record the StickyNote is attached to, have any messages about the StickyNote in their Communications > Email tab (well, the StickyNote record doesn't have an Email sublist either).