am trying to achieve per user spamassassin bayes training and leveraging the existing Zimbra scripts. The problem I am facing is when I do
/opt/zimbra/libexec/zmspamextract -r -m myuser@mydomain -o /tmp/hambox -q in:Inbox -v
it pulls out 26 messages and then dies with
[] INFO: Wrote: /tmp/hambox/14035b07a95-26
[] WARN: exception occurred fetching message
java.io.IOException: HTTP GET failed: /service/user/myuser@mydomain.com/?id=44731: 503: Service Unavailable
	at com.zimbra.cs.util.SpamExtract.extractMessage0(SpamExtract.java:314)
	at com.zimbra.cs.util.SpamExtract.extractMessage(SpamExtract.java:296)
	at com.zimbra.cs.util.SpamExtract.extract(SpamExtract.java:245)
	at com.zimbra.cs.util.SpamExtract.main(SpamExtract.java:194)
any thoughts on would could be causing it ?