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<body><div style="font-family: sans-serif;"><div class="plaintext" style="white-space: normal;"><p dir="auto">What is your mail host ?</p>
<p dir="auto">O365 has a very strange habit on rewriting your draft after a few hours with their own headers which might trigger this.</p>
<p dir="auto">On 13 Oct 2022, at 4:06, davecc0000 wrote:</p>
<blockquote style="margin: 0 0 5px; padding-left: 5px; border-left: 2px solid #777777; color: #777777;"><p dir="auto">I was wrong in this. Not all draft messages are not editable; some are, some not. But this does not correlate to whether it was created on my iPhone or the Mac mini. (I just created some test messages in both devices—1 on the iPhone, 2 on the mac; all are editable. Tomorrow they may have changed to not editable.)</p>
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