I know what the undisclosed recipients means. I wondered what the “((null))” after my friend’s email address means.
Using my email address as an example iit was from: [email protected] <mailto:[email protected]>((null)) The message about the document for review and Dropbox doesn’t count like somethingI would be getting from this person. > On Mar 2, 2019, at 5:38 PM, Lee Larson <[email protected]> wrote: > > On Mar 2, 2019, at 4:59 PM, Anne Cartwright <[email protected] > <mailto:[email protected]>> wrote: > >> Message sent to “undisclosed-recipients.” > > It usually means one or more of the recipients was sent via the Bcc: (= blind > carbon copy) option instead to To: or Cc:. This is often done to hide long > lists of addresses. > > L^2 > > ---- > Lee Larson > [email protected] <mailto:[email protected]> > > There's no way to build a digital lock that only angels can open and demons > cannot. Anyone saying otherwise is either ignorant of the mathematics or less > of an angel than they appear. — C.G.P. Grey > > > > > > _______________________________________________ > MacGroup mailing list > Posting address: [email protected] > Archive: > <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.mail-2Darchive.com_macgroup-40erdos.math.louisville.edu_&d=DwIFaQ&c=OAG1LQNACBDguGvBeNj18Swhr9TMTjS-x4O_KuapPgY&r=F2GFXrjLFqVo3VwvIlo_XYeEiRRjHv15rxcenz7A21woG2aFGcrzndoSsskxfmOs&m=5y0L-uUiPD4IuQOcY1zFB_9BALac158yzQZnqyIkk8I&s=0XseiRTteTNiJGF08Iq_RBOTJ42GFqv1UnyiXuIYY2g&e=> > Answers to questions: <http://erdos.math.louisville.edu/macgroup/>
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