Exact sequence of an archive run

Hi Sandrine,

Here it's a high level of the process.

1. When the archiving task starts (based on the schedule), it initiates MAPI connections (5/Exchange server by default) via the EV system mailbox defined for that Exchange server. 
2. Then it starts scanning the mailboxes one by one. It archives up to 1000 emails/mailbox (by default) and it moves on to the next mailbox and so on. If a mailbox has more emails eligible for archiving after this first pass, it is considered partially processed, else completed. Now, if the EV archiving task schedule is still open after the first pass, it will re-start from the beginning with all mailboxes that are partially processed. 
3. If the archiving task is started manually from the console by an administrator, EV will archive all eligible emails for a mailbox before it moves on to the next one.
4. Depending on the safety copies setting, the archived emails will be replaced with shortcuts immediately or after the backup.

Note the mailboxes are scanned under the context of the EV service account which has read permissions in Exchange. 

For more info, have a look through the following articles:

http://www.veritas.com/docs/000039674

http://www.veritas.com/docs/000068605

Hope this helps.