Martin wrote (2024-04-12):

 MK> Can FMAIL support more than one net with the same zone?  Right now, I've
 MK> got a mishmash of gecho and fastecho.  Gecho isn't succeeding in sending
 MK> stuff out, but has stuff coming in.  Fastecho is working both ways, but
 MK> doesn't support League 10 and Araknet both being in zone 10.

What should work with most tossers is running a separate instance/configuration for one of the overlapping nets and export the mail to different outbound directories. For inbound you can use binkd's inbox node parameter and copy the incoming files with "exec" to a separate inbox. Or try a perl-hook script in binkd to sort incoming mail. You can also run to binkd instances on different ports with different binkd.cfg files.

Alternatively you can try a tosser that supports 5D, like Squish or Crashmail (though I'm not really sure, if they fully support the same zone number on different domains).

I would also recommend to use different session and packet passwords for each network.

Unfortunately there are several pitfalls and weird things can happen. A full 5D setup is possible, but it's not trivial.

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