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Players can recover mail and its items in Arknights: Endfield after they get deleted. See how to recover lost mail, and how to use the Mail Cache here!
List of Contents

Check out the Mail Cache by accessing the Mail menu on the top-left corner of the Protosync Menu, depicted by an open envelope. Then, click on the Mail Cache on the right side of the list of mails you have obtained.
This will bring up the unclaimed items that came from deleted mail.
Unfortunately, when a mail gets deleted from the in-game inbox, it is permanent. While the attached items are saved in the Mail Cache, the text itself from the mail is lost forever.

The Mail Cache is a special feature in the Mail menu, located on the right side of the screen. They allow the player to claim items that have yet to be collected from previously deleted mail; either due to the time limit expiring or being deleted manually.

The Mail Cache only shows up in the Mail menu if items from previous mail that have been deleted were left unclaimed.
There is a limit of 500 different items that can be stored in the Mail Cache. Be sure not to let it get full, as this could lead to some items in the mail being lost for good if storage becomes too full for more items!

Some items that you receive from the Mail and Mail Cache are automatically saved into your Backpack. Be sure to have some space in your baggage first before claiming them to avoid unwarranted losses!
Which Items to Keep In Your Backpack

How to Level Up Fast |
Best Settings
| Early Game Tips |
Level Up Guide |
Upgrade Weapons |
- |
Arts Reaction Guide |
Combat System Tips and Tricks |
How to Do Perfect Dodge |
Arts Bursts Guide |
Physical Status Guide |
How to Stagger Enemies and Effects |
List of Controls |
Controller Support |
How to Download |
How to Link Accounts |
- | - |
How to Recover Lost Mail In-Game



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