MINECRAFT: How long does a server ban for spamming usually last?

I accidentally spammed the "e" key in chat, and it banned me. All it says is that "you are banned from this server". Please help. It's my favorite server, and if I'm banned forever, I wanna know so I have things to punch afterwords.

You're banned forever unless specified otherwise

Minecraft allows you to ban someone for X amount of time, they would have set a default time and message for spammers saying you have been banned for X amount of hours. As it didn't then you're most likely permanently banned yeah… "accidentally"…

Yeah… "accidentally"…