Thank you for your answer.
I'm very surprised for the fee because that's still represent 6 USD !
I finally made the transaction with a 0.0576 mBTC fee (0.3 mBTC/kB), so the amount sent is 0.36847 mBTC. The "Bitcoin Fees for Transaction" site (
https://bitcoinfees.earn.com/) indicated a delay between 30 to 1200 minutes, but the transaction seems to be stuck now.
Here is my transaction ID : e6be946adc9cd61cee97a4a081563c6f073c32ab54745eae832dcc6ef968b6d6 .
Should I wait any longer or is there something to do ?
Croal