Duplicate posts in a thread - Why?

@davidbk:

Well I didn't have to keep an eye out very long.  Here's a new thread with "the problem".  This is dated the evening from the time I last posted here so the "fix" should have been in effect.

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@_xyzzy_ wrote:

@davidbk:

Well I didn't have to keep an eye out very long.  Here's a new thread with "the problem".  This is dated the evening from the time I last posted here so the "fix" should have been in effect.

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I'm not so sure.  

I don't think people can start a new thread by sending an e-mail. Can they?

So while there is a double-post (which happens on the internet even without e-mail reply issues), I'm not sure this is the exact same problem.

Here's one that has a duplicate, the two post are six minutes apart. 

Thanks, @spoom2.

I've passed your example onto our developers - to take another look at this.

Thanks!
Dave

Here's another

Thanks, @spoom2

Unfortunately, I don't have any way of seeing - from the admin tools - whether these replies are being duplicated through the email reply functionality or something else. I sent a PM to the individual, to try to find out how he posted the reply that ended up being duplicated. Hopefully, I'll hear back and will be able to use that response to provide additional troubleshooting information to dev.

Thanks again!
Dave

P.S., I also followed up with the previous example's author but haven't heard back. 😞