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+Date: Thu, 11 Jul 2013 11:01:51 -0600\r
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+ <CAMoJFUvQzD4Mi0dmaUOapCY-f2c4Sf=kr4zsr42fA8ndQpSO=A@mail.gmail.com>\r
+Subject: Re: How to find mails which are sent to 'undisclosed-recipients' ?\r
+From: Adam Wolfe Gordon <awg+notmuch@xvx.ca>\r
+To: Vladimir Marek <Vladimir.Marek@oracle.com>\r
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+\r
+Hi Vladimir,\r
+\r
+On Thu, Jul 11, 2013 at 9:24 AM, Vladimir Marek\r
+<Vladimir.Marek@oracle.com> wrote:\r
+> Since my mail works in a way that it hides everything but what I\r
+> selected to be shown to me, I was overlooking all mails which where sent\r
+> to undisclosed-recipients. I tried to match such mails by\r
+> to:undisclosed-recipients but that does not seem to work. Is there any\r
+> workaround to find such mails?\r
+\r
+I have some mail with this To header:\r
+\r
+To: Undisclosed recipients <Undisclosed recipients:;>\r
+\r
+I can find them with the search to:"Undisclosed recipients". Note the quotes.\r
+\r
+-- Adam\r