Sapete dirmi a cosa è dovuto questo errore? Tento di inviare una e-mail con allegati ad un indirizzo noto (già usato), ma ritorna tutto indietro ...
This is the Eutelia program at host smtp.eutelia.it.
I'm sorry to have to inform you that your message could not be
be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to <postmaster>
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The Eutelia program
<info@DOMINIO.com>: host mx1.DOMINIO.com[62.149.128.157] said: 553 sorry,
you need to supply the correct username and password for SMTP-AUTH (#5.7.1)
(in reply to RCPT TO command)
This is the Eutelia program at host smtp.eutelia.it.
I'm sorry to have to inform you that your message could not be
be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to <postmaster>
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The Eutelia program
<info@DOMINIO.com>: host mx1.movelmatic.com[IP] said: 553 sorry,
you need to supply the correct username and password for SMTP-AUTH (#5.7.1)
(in reply to RCPT TO command)
Grazie.