There is an NPC in ICC somewhere in/near the Shopping building that gives a mission regarding the mail terminals ... very nice set of matching ncu for your belt.
I also found a mission from the Alien npc While still on Arete that is not mentioned in the OP: Talk with her (while not teamed) and you get a mission to find a friend. Return to her after finding a friend & teaming with them ... you might need to both be nearby, not sure. Toon with the quest returns and receives a nano can with xp boost inside ... after using that on your teammate you both get an xp boost cast on you and the toon with mission gets three ncu with complit requirement equal to the 3 slot belt you received from the save terminal quest. This mission does not involve going inside to do aliens ...
Emma