The Chat Filters section of the Config menu allows you to customise which and how certain messages are displayed in your chat log. Filtering certain chat messages helps to reduce the amount of "spam" in your chat log, reduces lag in events with many players (such as Besieged, Campaign Battles, and Dynamis), and allows you to clearly see and concentrate on important messages during battle.
Chat Filter States
Selecting a filter will cycle through several states:
Off - Messages will not be filtered. 
On - Messages will not appear in your chat log.
- This option is not available for "Tell", "Party", or "Linkshell" messages.
Hold - Messages will appear in your chat log, and will be shown for at least 8 seconds. If there are too many new messages scrolling through your chat log, messages that are set to be "held" will be shown in a separate box at the top of the chat log (see example on the right).
- This option is only available for "Say", "Shout", "Tell", "Party", "Linkshell", and "Emote" messages.
♪ - A tone will be played when you receive one of these messages.
- This option is only available for "Tell" messages.
General Chat
The Say, Shout, Tell, Party, Linkshell, and Emotes filter messages coming via their respective chat methods. These messages are the only ones that can be "held" in a separate chat window.
- "Tell", "Party", and "Linkshell" messages cannot be filtered (removed from the chat log).
Battle Messages
Battle messages can be filtered for several classes:
- You: Includes you.
- Party: Your party (but not alliance members).
- Allies: Other parties of your alliance.
- Foes: Enemies claimed by your party (red names).
- Others: Any other PC.
- NPCs: Other mobs---unclaimed (yellow names), claimed by others, or other parties in your alliance (purple names)---or NPC characters.
Your pets and the pets of party members ar categorised in the "You" and "Party" categories, respectively. All other pets (non-party and alliance members) are categorised under "NPCs".
Types of Messages
- Special actions started on/by
- Messages when a special action---Job Ability, Weapon Skill, or Magic Spell---is initiated.
- Special action effects on/by
- Messages when the initiated special action takes place and the resulting effect.
- Attacks by
- The result of attacks by the target.
- Missed attacks by
- Notices when an attack misses.
- Attacks evaded
- Notices when a player evades an attack by a mob. This includes evading an attack through methods other than Evasion, such as Copy Image shadows and Parrying.
- Damage taken
- The result of attacks on the target.
Filter Priority
The following priority order is given to chat filters:
If a message fits into several categories, filters at a higher level will take effect before those at lower levels (for example, "Party" filters will take effect before "Other" filters).
Other and System Messages
You can also filter the fishing and synthesis results of others, lot results (except for your own), campaign-related data in Shadowreign areas, and various system messages.