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If you BCC multiple people who have their email at GMail, in many circumstances the sending MTA will usually batch all those emails together and deliver them in one SMTP connection.<span id="ms-outlook-android-cursor"></span><br>
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Google might be able to infer a connection, I don't know if they even try at that level or not.<br>
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Even though those email addresses are not present in the RFC822 (et al.) header, the receiving MTA(s) will see them one at a time, at the very least. Whether it sees them together or as individual transactions is implementation-dependent (at the sending end).<br>
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-Adam</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Roundtable <roundtable-bounces@muug.ca> on behalf of Hartmut W Sager <hwsager@marityme.net><br>
<b>Sent:</b> Wednesday, February 2, 2022 10:31:27 AM<br>
<b>To:</b> MUUG - Round Table <roundtable@muug.ca><br>
<b>Subject:</b> Re: [RndTbl] gOOgle/gmail prying eyes</font>
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EH> My question is, if an email is sent to multiple parties and even if one of these is gmail, but should those who are on BCC (the non gmail ones) still somehow be visible to gmail?<br>
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On reread, I realize I should have clarified even further: Even if one or more recipients in "to", "cc", or "bcc" are using Gmail, Gmail has no way of seeing the other "bcc's" as long as Gmail/Google isn't involved at the SMTP (sending) stage.</div>
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<div dir="ltr"><span style="font-family:verdana,sans-serif"><font size="2">Hartmut W Sager - Tel +1-204-339-8331<br>
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<div dir="ltr" class="x_gmail_attr">On Tue, 1 Feb 2022 at 14:48, Hartmut W Sager <<a href="mailto:hwsager@marityme.net">hwsager@marityme.net</a>> wrote:<br>
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<div style="font-family:verdana,sans-serif; font-size:small; color:rgb(0,0,0)">With bcc specifically, the split/sendout to individual bcc targets (separate e-mails to each) takes place at the SMTP (sending server) end, with no bcc list shown, and therefore
none of the "to", "cc", and other "bcc" targets get to see the bcc list.</div>
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<div style="font-family:verdana,sans-serif; font-size:small; color:rgb(0,0,0)">However, you'd still want to be sure that Gmail/Google isn't involved at the SMTP stage. Using one's own domain-based "send-from" address configured into one's Gmail would
<b>not</b> do the trick.<br>
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<div dir="ltr"><span style="font-family:verdana,sans-serif"><font size="2">Hartmut W Sager - Tel +1-204-339-8331<br>
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<div dir="ltr" class="x_gmail_attr">On Tue, 1 Feb 2022 at 14:35, <<a href="mailto:eh@eduardhiebert.com" target="_blank">eh@eduardhiebert.com</a>> wrote:<br>
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<blockquote class="x_gmail_quote" style="margin:0px 0px 0px 0.8ex; border-left:1px solid rgb(204,204,204); padding-left:1ex">
Hi,<br>
<br>
Pertaining reasonable privacy concerns one key question, but first the <br>
qualifiers.<br>
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Any and all email crossing gOOgles hands whether their user or NOT gets <br>
copied and data mined.<br>
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If a non-gmail address sends one email to multiple contacts and one of <br>
them is on gmail or to any of gOOgle's cloaked and hidden email service <br>
account provider such as for the CBC, gOOgle has access to it.<br>
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My question is, if an email is sent to multiple parties and even if one <br>
of these is gmail, but should those who are on BCC (the non gmail ones) <br>
still somehow be visible to gmail?<br>
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Thanks,<br>
<br>
Eduard<br>
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