Bug: Can't send mail items because Identified as cheating on the server.

[AreChen]

Current Behaviour

When using the convenient mailbox to receive emails, it will cause the server to report cheating, and then players will not be able to send emails.
If there is no operation to receive emails at the beginning, you can directly send emails.

Expected Behaviour

Players can still send emails after receiving emails.

Steps to reproduce the problem

1. Use mail
2. Receive emails
3. Send emails
4. Unable to send emails, no response when clicked, server reports player cheating

Extra Notes

No response

AC rev. hash/commit

npcbots branch
854867630e

Operating system

Windows Server 2025

Custom changes or Modules

No response