Mark conversations as read / unread

A few techniques we use:
1) I keep an old “placeholder” email in Unassigned (subject line: DON’T
DELETE This Placeholder Email - Leave in Unassigned") - this way if your
unassigned email is sorted by oldest to newest, the new ones that come in
won’t be automatically marked as read even if the only other email in
unassigned is the placeholder.
2) We use Comments a LOT - since they show up in the listing as orange they
stand out. I might say “Waiting for customer reply” or tag a coworker
(@John Smith any thoughts on this?)
3) Since Hubspot doesn’t have labels, my team has created a list of common
“tags” & enter those in a comment with a carrot in front: ^OrderProblems or
^Purchasing
Yes - we’re very frustrated with HubSpot’s email service.