email vacation wont work

Hello

Whe I try to active the opction for Autoresponder this not work, do you know about this?

I add the account and when i send email to the account already add
i don recieve any email with an auto response

Yesterday a Recieve a bounce error message

<jburga#cpl.org.pe@autoreply.cpl.org.pe> (expanded from <jburga@cpl.org.pe>):
    Host or domain name not found. Name service error for
    name=autoreply.cpl.org.pe type=A: Host not found

Final-Recipient: rfc822; jburga#cpl.org.pe@autoreply.cpl.org.pe
Original-Recipient: rfc822;jburga@cpl.org.pe
Action: delayed
Status: 4.4.4
Diagnostic-Code: X-Postfix; Host or domain name not found. Name service error
    for name=autoreply.cpl.org.pe type=A: Host not found
Will-Retry-Until: Thu,  9 Jul 2015 18:47:55 +0000 (UTC)