https://bugs.exim.org/show_bug.cgi?id=2794
--- Comment #2 from Thomas Tempelmann <tempelmann@???> ---
I investigated this.
Turns out it's rather simple, and probably easy to reproduce:
It has nothing to do with the "z:" name.
Instead, it's about a symlink pointing back to its own parent dir, causing an
endless recursion that way.
Now, what's the verdict of dealing with these?
I mean, there are a lot of cmdline tools on Unix and Linux that perform
recursive directory traversion. They all should be able to deal with this,
shouldn't they? And some apparently do. I wonder if that's those that use a
special traversal function which would handle this case (for macOS/BSD, there's
`fts_open`, for example?
If you traverse "by hand", you'll have to look at the symlink and determine
whether it leads to a recursion, right?
What's your take on this?
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