ERROR relay error from webmail.

[mikidouglas]

Error when trying to send mail to a domain using webmail.
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is currently not permitted to relay through this server. Perhaps you have not logged into the pop/imap server in the last 30 minutes or do not have SMTP Authentication turned on in your email client.
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Please note that this error is not with sending mail using mail client but with webmail...

SOLUTION
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The Error had caused as the domain name was recently moved and was listed in /etc/remotedoains and not in /etc/localdomains

put the domain name in localdomains files and remove it from remotedomains file.
and it will work..

[Zion Ahead]

Same exact problem here