These docs look like they apply to the legacy mailboxes, check the article about MFA and you'll see how limited it is. This is the biggest thing I hope they fix

These docs look like they apply to the legacy mailboxes, check the article about MFA and you'll see how limited it is. This is the biggest thing I hope they fix with the new system. In my Gandi portal I don't yet have an option to switch to "new" GandiMail. I figure their docs aren't updated yet either. Your legacy mailbox probably already supports Sieve.