TZUTC: -0700
MSGID: 58742.sync_sys@1:103/705 2d5ea8b4
PID: Synchronet 3.21a-Linux master/88b423313 Sep 29 2025 GCC 12.2.0
TID: SBBSecho 3.30-Linux master/88b423313 Sep 29 2025 GCC 12.2.0
BBSID: VERT
CHRS: UTF-8 4
FORMAT: flowed
https://gitlab.synchro.net/main/sbbs/-/commit/a3b2f9e2d2cf3494bf
0f54f77ebdfb8fa49976b#note_7756

So, this is actually likely not a bug...

Per [FTS-5005](http://ftsc.org/docs/fts-5005.003), a ^ prefix requests that
the mailer delete the file after it is sent. In The Clans, you can configure
the mailer as "Binkley" or "Not Binkley".

When it's Binkley, it prepends the ^ to the path, and when it's not Binkly, it
adds a "FLAGS KFS" kludge line to the message.

So while you do need to skip it to check if the file exists and potentially
fix the case, it should also pass it through to the FLO file... characters
that should pass through are '#', '^', '~', '-', '!', and '@', and '^'.
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