"You must wait ___ second(s) before speaking again."

I noticed this happens every time I switch zones (e.g. enter/leave instances, flight paths, etc.). I couldn't find anything on it on the forums. Is this something that I can fix on my end? I've been told that it's because of the server's spam filter but I am certainly not spamming anything that I'm aware of. Thank you for helping.

Some addon could be spamming in a channel that you can't see.

List of addons I'm using:
1. AtlasLoot
2. Auctioneer
3. Bartender
4. Cromulent
5. Decursive
6. Mapster
7. Omen
8. OmniCC
9. PartyBuffs
10. QuestHelper
11. QuickHeal
12. Recount
13. SellOMatic
14. VisualHeal

Do any of these sound like they'd be spamming messages? I guess I might have to trial and error otherwise.

I found the problem - it was the QuickHeal addon. Thank you.