Hi there, 1st of all Amazing Plugin. Thank you.

I have a problem on my server where players are able to Teleport to sleepers(Players that are offline) without them accepting the TP and then basicly raid them from inside.

Please can you help me fix this.

If you set the permission nteleportataion.tp, then they could use /tp without asking permission as with /tpr.  Not recommended ;)

I had a player who had only just started to play and he said in chat he could tp to coords which took me by surprise, on checking (and posting a thread) i found out that i had to disable/revoke the /tp permission,
I also revoked the following ones as well,
(22:28:20) | Group 'default' revoked permission 'nteleportation.deletehome'

(22:28:40) | Group 'default' revoked permission 'nteleportation.radiushome'

(22:29:08) | Group 'default' revoked permission 'nteleportation.tpremove'

(22:29:37) | Group 'default' revoked permission 'nteleportation.tpn'

(22:29:49) | Group 'default' revoked permission 'nteleportation.tpl'

(22:30:06) | Group 'default' revoked permission 'nteleportation.tptown'

Things are a little quieter now,

Thanks guys, this did the trick!!