All are OK?
If that's okay with you. and If that's all right with you.
If that's okay by you. and If that's all right by you.

Question

All are OK?
If that's okay with you.  and  If that's all right with you.
If that's okay by you.    and  If that's all right by you.

Answer

Bu anda, merhaba arkadas, siz nasisiniz ;p

Answer

All of them are correct! Except "if that's all right BY =wrong, it sounds weird...

Answer

If that's all right WITH you.