Free

Free is an internet service provider headquartered in France. It provides free email accounts to its customers, notably those of Free and Alice. Their postmaster page is filled with detailed information about error codes and IP lookup options, including instructions to report a false-positive spam verdict.

Codes

550 · 552 · 554

550
550 spam detected

Free.fr determined the message that you sent included spam content. Check your mail to make sure it should not be missdetected as a spam, either by using an antispam softwate or by checking if the mail is syntaxically correct.

550 5.2.2 user quota exceeded
550 5.2.1 This mailbox has been blocked due to inactivity

The mailbox is not currently active because of inactivity from the recipient. Once the recipient reactivates their mailbox, they'll be able to receive messages again.

550 virus detected

Free.fr has detected a virus in the message that you sent. Check your mail to make sure it should not be missdetected as a spam, either by using an antispam softwate or by checking if the mail is syntaxically correct.

552
552 5.2.2 user quota exceeded (UserSearch)
554
554 5.2.2 <example@free.fr>: Recipient address rejected: Quota exceeded (mailbox for user is full)

The recepients email mailbox is full and currently unable to accept messages.