ciao a tutti, con alcune mail (non con tutte) ottengo questo messaggio


Delivery to the following recipient failed permanently:

(indirizzo mail....)

Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the recipient domain. We recommend contacting the other email provider for further information about the cause of this error. The error that the other server returned was: 554 554 Sorry, message looks like SPAM to me (state 18).



Ovviamente l'indirizzo mail è corretto, secondo voi quale potrebbe essere il motivo?

Grazie!