Pour info, le message d'erreur :
gmail-smtp-in.l.google.com[2a00:1450:400c:c07::1b] said: 550-5.7.1
[xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx] Our system has detected that
550-5.7.1 this message does not meet IPv6 sending guidelines regarding PTR
550-5.7.1 records and authentication. Please review 550-5.7.1
https://support.google.com/mail/?p=IPv6AuthError for more information 550
5.7.1 . 63si5470958wrr.46 - gsmtp (in reply to end of DATA command)
Le message laisse penser que le problème se pose uniquement sur l'IPV6. Le Support K-Net se penche sur le souci, wait & see
gmail-smtp-in.l.google.com[2a00:1450:400c:c07::1b] said: 550-5.7.1
[xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx] Our system has detected that
550-5.7.1 this message does not meet IPv6 sending guidelines regarding PTR
550-5.7.1 records and authentication. Please review 550-5.7.1
https://support.google.com/mail/?p=IPv6AuthError for more information 550
5.7.1 . 63si5470958wrr.46 - gsmtp (in reply to end of DATA command)
Le message laisse penser que le problème se pose uniquement sur l'IPV6. Le Support K-Net se penche sur le souci, wait & see