We are looking for reference customers who have successfully achieved, via using local-mail replication with new-mail polling, these two requirements:
Receive new mail in the in-box very shortly (i.e. within 1 minute) of it arriving at the mail server (either the primary or the backup if it goes down).
Fail-over seamlessly (no user intervention) in the event of a mail server outage.
If this applies to you please respond to this posting.