(code: 550, response: Authentication failed)]

[Miss HK]

I set up the email account right and everything work but when I try to send and emal I get this message:

There was an error sending your message: Failed to add recipient: agente_z2******.es [SMTP: Invalid response code received from server (code: 550, response: Authentication failed)]

What am I doing wrong?

[Vasili]

Re: (code: 550, response: Authentication failed)]

There was an error sending your message:

Failed to add recipient

: agente_z2******.es [SMTP: Invalid response code received from server (code: 550, response: Authentication failed)] What am I doing wrong?

See it now?