Does the Message Server or RazorGate appliance rewrite message envelopes when redirecting a message?
Rewriting envelope recipient addresses is vital for email to work. All of the mechanisms for redirecting a message (i.e., distribution lists, LDAP, LDIF, filter forwarding) rewrite envelope recipient addresses. However, it is not always necessary to rewrite message headers.
For more information on message headers, see the Mirapoint Message Server/RazorGate Administrator's Guide for your software release