This is the Postfix program at host antispam2.netizen.com.ar.

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 Postfix program

sfuqua@elsitio.net: host 200.49.100.42[200.49.100.42] said: 554 sfuqua@elsitio.net: Recipient address rejected: Access denied (in reply to RCPT TO command)

sita@elsitio.net: host 200.49.100.42[200.49.100.42] said: 554 sita@elsitio.net: Recipient address rejected: Access denied (in reply to RCPT TO command)

starcat@elsitio.net: host 200.49.100.42[200.49.100.42] said: 554 starcat@elsitio.net: Recipient address rejected: Access denied (in reply to RCPT TO command)

stern@elsitio.net: host 200.49.100.42[200.49.100.42] said: 554 stern@elsitio.net: Recipient address rejected: Access denied (in reply to RCPT TO command)