A method and apparatus for selective routing of a multi-recipient communication
from an origin domain to a destination domain within a communications network.
An exit routing station added to the origin domain receives a datagram including
content data intended for multi-recipient delivery in the destination domain. The
exit routing station modifies the datagram for routing to the destination domain,
and transmits it to the entry routing station. This enables delivery to the destination
domain by other than multi-recipient techniques. An entry routing station added
to the destination domain modifies the datagram for multi-recipient delivery in
the destination domain and initiates multi-recipient delivery. The destination
domain's entry routing station may modify the datagram with information specific
to the destination domain and unknown to the origin domain. Accordingly, no revisions
to software applications employing multi-recipient technology is required, and
destination domains otherwise unreachable by traditional multi-recipient techniques
may be reached.