Company leavers are moved to leavers OU and leavers policy is applied to that OU ( 0day policy), the accounts in leavers OU are disabled in AD. Nothing gets archived during auto archive, however if u select mailbox archiving and run now on the disabled AD account items are archived. Can somebody shed some light to why it works on run now and it doesnt on schedule archive run. EV is version 7.0 .
This technote, http://support.veritas.com/docs/273123, points out that EV does not archive disabled AD accounts but it also mentions another technote for using EVPM to set the 0 day policy and then do a Run Now, so it may be that scheduled archiving doesn't work, but a Run Now does.
You could verify this by setting up DTRACE (http://support.veritas.com/docs/276120) and as you have EV7 you can do the Admin Console option, select the Exchange Archiving trace (name may not be right - doing this from memory) then do a Scheduled run and a Run Now - the trace should show why the disabled users are not being archived......if in doubt log a case with support:)