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<div class="moz-cite-prefix">On 03/29/2014 12:05 PM, Steve Riley
<blockquote cite="mid:2076754.BmxJFJnxsA@t520" type="cite">
<pre wrap="">According to RFC 5322, the only required header fields are origination date and origination address. All others are optional.
Here, my KMail prompts me if I leave the "To:" field blank. A dialog says, "To: field is empty. Send message anyway?" If I click "Yes," the message is delivered normally.</pre>
<font face="Arial">So don't leave it blank. Click on the TO
drop-down and make it your first BCC entry. That leaves no TO
entry at all.<br>
I never had a problem sending BCC's.<br>
<pre class="moz-signature" cols="72">--
"There is no such thing as pure pleasure; some anxiety always goes with it."