[Resuelto] Autorizar mensajes desde un servidor

[Puntonetsvb]

Necesito autorizar a un server para que no me lo rechaze como spam

Cuando intentan mandarme un correo les devuelve:

The original message was received at Wed, 24 Jun 2009 13:06:54 +0200 from
62.42.10.87.dyn.user.ono.com [62.42.10.87]
----- The following addresses had permanent fatal errors -----
<posada@lacharola.com>
(reason: 550 5.7.1 <posada@lacharola.com>: Recipient address rejected:
Mail appeared to be SPAM or forged. As....es, MTA hostname:
164.red-217-127-77.staticip.rima-tde.net[217.127.77.164] (helo/hostname
mismatch))
----- Transcript of session follows ----- ... while talking to
mail.lacharola.com.:
>>> DATA
<<< 550 5.7.1 <posada@lacharola.com>: Recipient address rejected: Mail
appeared to be SPAM or forged. Ask your Mail/DNS-Administrator to correct
HELO and DNS MX settings or to get removed from DNSBLs; MTA helo:
urano3.ceoecant.es, MTA hostname:
164.red-217-127-77.staticip.rima-tde.net[217.127.77.164] (helo/hostname
mismatch) 550 5.1.1 <posada@lacharola.com>... User unknown <<< 554 5.5.1
Error: no valid recipients