the cost is at the end of the new price list after the domains.
Prix mensuel de la nouvelle offre mailbox / new mailbox offer montly prices
HT/VAT excl
standard 3,99 € / $3.99
premium 5,99 € / $5.99
respectively 4,79€ and 7,19€ TTC/VAT incl.
It's insane. So with 2 mails boxes, that were not free but included in the price/package of the domain. I will have to pay 2121.2*3.99=115€/year for a basic e-mail service that was included until now. It feels like a breach of contract.