redirect email problem in plesk

webski
webski used Ask the Experts™
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Hello experts.
I'm receiving  this error on plesk:
A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed:

  info@domain.com.au
    SMTP error from remote mail server after RCPT TO:<info@domain.com.au>:
    host mail.domain.com.au [ip-adress]:
    553 sorry, that domain isn't in my list of allowed rcpthosts; no valid cert for gatewaying (#5.7.1)
info@domain.com.au is setup like forvarding domain..
Thanks in advance!
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sounds like this server required authenticated SMTP to send to that particular domain, you may need to set up a secure SMTP service for that domain, or get them to allow your host unauthenticated (like the public do).

Author

Commented:
How do i do this?
have a look at this MS doco.

specifically, this section:
Enable Transport Layer Security Encryption for a Specific Remote Domain in an Exchange Organization

http://support.microsoft.com/kb/829721

Author

Commented:
Thank You very much.
My pleasure, care to close the question off please?

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