Mailbox shows as full, despite the inbox being empty.

[Raskbuck]

Time: N/A
Frequency: Always
World name: Leviathan
Character name: Rask Crowe
NPC name: Delivery Moogle
Monster name: N/A
Class/Level: Any class
Party or solo: Both
In-game time: N/A
Area and coordinates: N/A
Steps:
1. Let some letters with items attached on them stay in your inbox for several days.
2. Retrieve the letter & items from the mailbox.
3. For some reason the game still treats your inbox as full, despite being empty, and prevents other players from sending you more in-game mail.

Connection Specs
- Type of internet connection/provider: Cable - Broadband / ISP: VTR Globalcom S.A.
- Modem maker/model number: Motorola/4200

PC Specs
-=-=-=-=- System Information -=-=-=-=-
SYSTEM_OS Windows 8.1 Pro 64 bits (6.2, compilación 9200) (9600.winblue_gdr.131006-1505)
SYSTEM_CPU Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz (8 CPUs), ~3.4GHz
SYSTEM_CORE_NUM SYSTEM_CORE_LOGIC 8 SYSTEM_CORE_PHYSICS 4
SYSTEM_BIOS BIOS Date: 06/05/12 16:01:39 Ver: 04.05
SYSTEM_LANGUAGE English (configuración regional: English)
SYSTEM_MEMORY 8131.391MB
SYSTEM_VIRTUAL_MEMORY 2047.875MB
SYSTEM_PAGE_FILE 16323.391MB
SYSTEM_STORAGE C:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 465.418GB SYSTEM_FREEDISC_SPACE 149.713GB
SYSTEM_DIRECTX_VERSION DirectX 11
SYSTEM_GRAPHICS NVIDIA GeForce GTX 660 Ti
SYSTEM_GRAPHICS_DEVICE \\.\DISPLAY1
SYSTEM_GRAPHICS_CHIP GeForce GTX 660 Ti
SYSTEM_GRAPHICS_MAKER NVIDIA
SYSTEM_GRAPHICS_VRAM 1989.625 MB
SYSTEM_GRAPHICS_SHARED_VRAM 2048.309 MB
SYSTEM_GRAPHICS_DAC Integrated RAMDAC
SYSTEM_GRAPHICS_DISPLAY_MODE 1920 x 1080 (32 bit) (60Hz)
SYSTEM_GRAPHICS_DRIVER nvd3dumx.dll,nvwgf2umx.dll,nvwgf2umx.dll,nvd3dum,nvwgf2um,nvwgf2um
SYSTEM_GRAPHICS_DRIVER_VERSION 9.18.0013.3165
SYSTEM_GRAPHICS_DRIVER_DATE 27-Oct-13 9:12:42 AM
SYSTEM_GRAPHICS_DRIVER_LANGUAGE Inglés
3.0
SYSTEM_GRAPHICS_PIXEL_SHADER 3.0
SYSTEM_GRAPHICS_VERTEX_TEXTURE SYSTEM_SUPPORT
SYSTEM_SOUND Altavoces (Dispositivo de High Definition Audio)
SYSTEM_SOUND_DEVICE_ID {A37132DD-14D0-4D99-B763-08AB0ACCE110}
SYSTEM_SOUND_DEVICE_NAME HdAudio.sys
SYSTEM_SOUND_DRIVER_VERSION 6.03.9600.16384
SYSTEM_SOUND_DRIVER_LANGUAGE Español
SYSTEM_SOUND_DRIVER_DATE 22-Aug-13 8:38:21 AM
SYSTEM_SOUND SAMSUNG-1 (NVIDIA High Definition Audio)
SYSTEM_SOUND_DEVICE_ID {29A4294F-C6F4-43F5-AC98-08D5DCC8DFCE}
SYSTEM_SOUND_DEVICE_NAME nvhda64v.sys
SYSTEM_SOUND_DRIVER_VERSION 1.03.0026.0004
SYSTEM_SOUND_DRIVER_LANGUAGE Inglés
SYSTEM_SOUND_DRIVER_DATE 27-Oct-13 9:12:42 AM
SYSTEM_SOUND Audio digital (HDMI) (Dispositivo de High Definition Audio)
SYSTEM_SOUND_DEVICE_ID {6AF4B036-26E5-4772-9791-3285FE05EB45}
SYSTEM_SOUND_DEVICE_NAME HdAudio.sys
SYSTEM_SOUND_DRIVER_VERSION 6.03.9600.16384
SYSTEM_SOUND_DRIVER_LANGUAGE Español
SYSTEM_SOUND_DRIVER_DATE 22-Aug-13 8:38:21 AM
SYSTEM_INPUT {6F1D2B60-D5A0-11CF-BFC7444553540000}
SYSTEM_INPUT_NAME Mouse
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 3 SYSTEM_GAMEPAD_BUTTON 3 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {6F1D2B61-D5A0-11CF-BFC7444553540000}
SYSTEM_INPUT_NAME Teclado
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 128 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {0321A1B0-2D31-11E3-8004444553540000}
SYSTEM_INPUT_NAME Controller (Xbox 360 Wireless Receiver for Windows)
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 5 SYSTEM_GAMEPAD_BUTTON 10 SYSTEM_GAMEPAD_FOV 1
SYSTEM_INPUT {10CB3060-4EF2-11E2-8002444553540000}
SYSTEM_INPUT_NAME Wired Keyboard 600
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 1280 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {10D171F0-4EF2-11E2-8003444553540000}
SYSTEM_INPUT_NAME Wired Keyboard 600
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 256 SYSTEM_GAMEPAD_FOV 0
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Laptop Model Name: N/A
Laptop Model Number: N/A

Gamepad Manufacturer: Sony
Gamepad Model Name: Dualshock 3 Wireless Controller
Gamepad Part Number: N/A

Browser Information
- Name and version of the browser currently in-use: Mozilla Firefox 25.0.1
- Internet Explorer Version: 10

[HEC]

Have you deleted the old mail from the "Open" folder (second tab in mailbox)?

[Raskbuck]

Have you deleted the old mail from the "Open" folder (second tab in mailbox)?

I believe so, but I'll try deleting more mails under that tab to see if it works. Thanks for the suggestion!

[Furlamseere]

Greetings Raskbuck,

We encourage you to attempt the suggestion offered by HEC. As you have not responded, we are going to go ahead and assume this has resolved. If this does not resolve the issue, please create another bug report thread and use the bug reporting template found Here. Also, please state the steps you have attempted to resolve this issue.