Hello,
I am looking at a prospect of integrating several customer bases into one email server (cyrus :)) while maintaining email addresses from various domain names. I would also like for the transition to be transparent to the clients' setup (Outlook, etc). The main obstacle is the duplicate usernames. Perhaps, the aggregator may help with this issue. Another solution can be a simple user rewrite module for pop/imap/sieve. This can be db, skiplist or ldap based. I was wondering if you can share your experience with a such predicament. Thanks, -Igor