<p><a href="https://github.com/richlv" class="user-mention">@richlv</a> I have a similar issue "invalid header name syntax: "From sender@email Mon Dec 18 00"" with mail 2.7.0 and 2.7.1.edge (at 2-7-stable@34aef0d) gem.</p>
<p>Can you verify if it only happens with utf8 chars? Only ascii mails are working fine?</p>

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