I have been looking into PST Migrations for the last couple of weeks, and one of the good things that I discovered was the fact that an email can be sent when a PST is successfully ingested into Enterprise Vault.
If you recall there are several methods of ingesting PSTs:
* Server Wizard (just from in the VAC)
* Server Driven (locate, collect, migrate)
* Client Driven
* EVPM (i.e. scripted)
All of these take advantage of the ability to send out an email at the end of the ingest of the PST data. The email is based on a template called : PSTMigrated.msg. As an administrator you have to put that in the Enterprise Vault program folder, and you can customise it.
The message is sent for each of the migration methods provided the option to put shortcuts in the mailbox has been selected.