Originally Posted by
Urthdigger
Upgrading the emblem adds NPCs that offer delivery services all across the place (There's an NPC in the Scouts' Coalition who says where they are, but he's annoyingly vague). Without the upgrade, Adoulin is marked as having services "Most areas" while everywhere else is not in service. After the upgrade, Adoulin is marked as having service in "All areas", while the outdoor zones have limited service. Which means there's one at each frontier outpost...
I will have to say, the usefulness of this upgrade baffles me. I mean, when have you been out in the field and thought "You know... I really need to send this to a mule, but I kinda don't want to go back to town..."