How long am I banned from sending messages

The enforcement team don't use the forums so no one here can tell you.

You would need to log onto the enforcement page HERE for info on your suspension.

No, xbox live have banned me from sending messages for i dont know how long. How can i sort this out and get me unblocked from sending messages?

You can check your suspension and your ban duration here: https://enforcement.xbox.com

Just for information: Sending a message and then deleting it doesn't un-send the message or delete it from everywhere. Deleting a message simply deletes your side of the message...however, the message will still be in the other person's inbox (until they choose to delete it) and will still be on an Xbox/Microsoft server somewhere (no idea how long messages are kept by MS/Xbox though).

Only way to avoid a ban is to not send the message in the first place

Hello, I got banned on xbox live but it's the second time, i'm wondering for how long my ban is going to take. I'm not able to talk and send/receive messages on xbox live. Greetings .