TZUTC: -0800
MSGID: 58810.sync_sys@1:103/705 2d7720cb
PID: Synchronet 3.21a-Linux master/88b423313 Sep 29 2025 GCC 12.2.0
TID: SBBSecho 3.31-Linux master/d39e01091 Nov 03 2025 GCC 12.2.0
BBSID: VERT
CHRS: UTF-8 4
FORMAT: flowed
open https://gitlab.synchro.net/main/sbbs/-/issues/1004

There doesn't seem to be anything preventing sbbsecho from importing a .msg
file that will get forwarding on a different domain.

This would allow sending a FidoNet message from the traditional -1/-1 node
address to a system that is in multiple domains, and with an INTL line, have
it delivered to a non-FidoNet address.

I'm not sure if file attaches get routed as well, but if they do, this allows
fairly trivial untraceable attacks on InterBBS leagues assuming routed netmail
goes into the secure inbound.
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