Hi,

It seems there is a problem with SPF @ infomaniak :

RCPT from smtp-bc0c.mail.infomaniak.ch[2001:1600:4:17::bc0c]: 550 5.7.1  Recipient address rejected: Message rejected due to: SPF fail - not authorized. Please see http://www.openspf.net/;  proto=ESMTP helo=<smtp-bc0c.mail.infomaniak.ch>

Best regards,

Rémy