Interesting (and accurate) deduction... :)

-----Original Message-----
From: edk2-devel [mailto:edk2-devel-boun...@lists.01.org] On Behalf Of Gary Lin
Sent: Thursday, May 19, 2016 5:07 AM
To: Laszlo Ersek <ler...@redhat.com>
Cc: edk2-de...@ml01.01.org; Wu, Jiaxin <jiaxin...@intel.com>; Siyuan Fu 
<siyuan...@intel.com>
Subject: Re: [edk2] [PATCH 1/2] NetworkPkg/HttpDxe: Don't free Wrap in 
HttpTcpReceiveNotifyDpc

On Thu, May 19, 2016 at 11:53:59AM +0200, Laszlo Ersek wrote:
> On 05/19/16 10:39, Gary Lin wrote:
> > Cc Samer and Nagaraj.
> > I saw them with "git sent-email --dry-run". Wonder how they were dropped.
> 
> They were not dropped. The list software is trying to be smart.
> 
> Namely, if you go to 
> <https://lists.01.org/mailman/listinfo/edk2-devel>,
> and click "Unsubscribe or edit options", you can toggle a number of 
> mailing list options for your subscriptions. One of these options is:
> 
>   Avoid duplicate copies of messages?
> 
> This affects how the list software reflects an email to you that you 
> were also directly addressed on.
> 
> Some people (including me) like to receive duplicate copies. Meaning, 
> if you CC me on a patch that you send to the list, I will get a direct 
> copy from you (due to the CC), plus the list software will send me 
> another copy (*because* I have enabled duplicate copies). I like to 
> see one instance of your patch in my INBOX, and another one in my 
> edk2-devel folder (which is supposed to be a complete archive).
> 
> However, others don't like to receive duplicates. They prefer the list 
> software not to send them a reflected message, if they are also on the 
> CC list directly. When the list software is deciding about reflecting 
> a message to subscriber X, and subscriber X has disabled duplicates, 
> and subscriber X is also on the CC list of the message that the list 
> software received from the submitter, then the list software assumes 
> subscriber X has the message anyway (directly from the submitter), and 
> will not reflect the message to subscriber X.
> 
> *But*, to actually answer your question, in this latter case something 
> else happens to. Namely, subscriber X is *also* removed from the CC 
> list of the message that the list software sends out to any other 
> subscribers. I guess the idea is, "subscriber X likes to receive 
> exactly one copy of each message on the list; so he got one copy of 
> the thread starter directly from the submitter, and he will get one 
> copy of each followup message too, sent by others, reflected by the list 
> software".
> If the CC were preserved in the reflected thread starter, then 
> followup messages would arrive to subscriber X both directly and 
> reflected by the list.
> 
> For the submitter, this CC munging is incredibly confusing and annoying.
> But, if you know about the above, it is more tolerable.
> 
> As a side effect, you can now deduce that Samer and Nagaraj have *not* 
> enabled duplicate copies in their options. :)
> 
Thanks for the detailed explanation. So my mail server config is alright. I'm 
much relieved now :)

Thanks,

Gary Lin
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