Schedule of a report fails as csv to destination outlook email

Hi Gurus,

We are trying to schedule a webi to outlook as a csv file and we keep getting a failure "deliverResultsToDestination failed". The report in  itself works fine when executed on the launchpad.

This a 40 mb report so I filtered out to just 3 pages report and then scheduled it again and its the same issue. Whereas when I schedule it as an Excel (instead of CSV), the schedule works perfect. I also checked out that the same file schedules fine when the destination is set to BI INBOX, Outside location but only fails when destination is set to OUTLOOK EMAIL with a CSV format.

And one more thing to add is we have 2 nodes on our installation and both tested out to be fine with other report schedules.

Can anyone point towards the possible issues with this? Appreciate your valuable suggestions.

Thanks,

Ivan