Observation: Reports have been configured to be delivered via email in the report scheduler portlet. There is a two server UMP deployment behind a load balancer. We are receiving two emails per configured report.
Question: Is it possible that these are triggered by the two UMP servers that actually constitute the UMP?
Thanks in advance!
I believe the following Knowledge Document addresses this exact problem:
KB000009275 : Duplicate Scheduled reports are being delivered in a multi-node UMP environment