I heard the crash before I saw the dented label—six heavy boxes had slid from the shelf and flattened everything below. You stand there with a scanner in one hand and a sinking feeling in the other. I kept calm; this job teaches you how to read a package the way a detective reads a note.
I’ve sorted more than one thousand parcels in Cat Mail Co., and I’ll show you the small signals that stop disasters and speed deliveries. Follow my cues and you’ll cut costly mistakes, keep recipients happy, and stop packages from becoming trash.
You can tell a lot by the recipient’s wording. All Package Constraints in Cat Mail Co.
Some notes are vague; others give you a roadmap. The recipient’s description often hides the one rule that will save the item—read it like a map. Below, I’ll break each constraint into what to look for and the single correct place to store it.
| Label | Recipient Description | How to Store |
|---|---|---|
| Weight | “You look strong enough; it’s really not lightweight.”“I hope you have someone to help you because it’s heavy.” | These are heavy boxes that can crush anything under them. You will have to apply six weight stickers and a special heavy sticker. Make sure to keep them at the bottom because they will crush anything that is kept under them. |
| Fragile | “Be cautious, it’s a fragile box.” | These are extremely fragile boxes that will get damaged if you keep anything on top. Always store these packages on top of a shelf. |
| Cold | “I am waiting for my delivery from [Any Island], I hope you kept it cold enough.”“I ordered special catnip seeds, they need to be refrigerated so they don’t sprout.”“My package is a box of ice creams.”“My package is supposed to be refrigerated.”“My package is a special fish delivery.” | These packages must be kept in the cooler room; otherwise they will get damaged at the end of your shift. |
| Warm | “My package is supposed to stay warm for a better preservation.”“My package is a bunch of special fire dragon scales.”“My package is from [Any Island], I hope the trip didn’t let it cool down.” | These packages must be kept in the heated room; otherwise they will take damage at the end of your shift. |
| Dark | “My package contains photographic films, they have to stay in a dark room.”“My package is very special, it needs to stay in a dark environment.”“I ordered midnight spores, they need to stay away from the light.”“Have you stored my dark package properly?” | You must place these packages in the dark room; otherwise they will get damaged at the end of their shift. To unlock the room, you will have to clear the parcel pile in the cooler room. |
| Light | “My package is very special, it needs to stay in a bright environment.”“My package is supposed to stay in a bright room.”“I ordered sunflowers, they need a lot of light.” | These parcels must be stored in the Light Room. Otherwise, they will get damaged. To unlock the room, you will need to clear the parcel pile in the Heating Room. |
| Partner/Love/Heart | You have to detect the package by putting it under the lamp. You will find a glowing heart on it. Typically, these packages will have a second parcel that will connect with it using two light beams. | Both packages will have to be kept together. If they get separated, the light beams will disappear. |
How do I identify a heavy or fragile package quickly?
Scan the recipient note first, then check the box for labels. A heavy shipment will usually include phrases asking for help; fragile items will literally say fragile. When in doubt, apply the heavy and fragile stickers—applying the correct sticker is cheaper than repairing a returned parcel.
Can mixing temperature-sensitive items break deliveries?
Yes. Cold and warm items cannot share space without risking both. Keep cold in the cooler room and warm in the heated room; that rule prevents spoilage and angry messages from recipients.
Practical tip: join the Cat Mail Co. Discord or consult Steam community guides for player-made maps of room layouts and shortcut paths—those resources saved me hours on night shifts. You’ll also find threads on Moyens I/O discussing rare parcel behaviors and community-tested tricks.
You’ll spot damage before the complaint arrives at your terminal. How to repair a damaged package in Cat Mail Co.
A wet blotch, a dent, or a missing sticker—those are the red flags. When a parcel has taken damage, the repair table is where you go to fix the situation.
Place the damaged package on the repair table after you have access to it. Click the cardboard to the left of the table and the game will automatically restore the parcel. Any damage previously taken will be reverted. Remember: you can restore at most three parcels per shift, so prioritize high-value or time-sensitive deliveries first.
One rule I follow: if a note mentions refrigeration, film, light requirements, or paired hearts, act on that first—everything else can wait. If you’re collecting community tips, check Steam guides and the Cat Mail Co. Discord; veteran players often share room-clear strategies that save you time and damage.
A heavy box is a small moon—everything else orbits around where you put it. The repair table is a field hospital for parcels that need a second chance. Are you going to let a careless shelf arrangement decide someone’s delivery fate?