<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><blockquote type="cite"><div><blockquote type="cite">and indeed the Message-ID is syntactically incorrect.<br></blockquote><br>And so others don't have to search all through rfc5322 here the relevant rules:<br></div></blockquote><br></div><div>Just from curiosity, I browsed thru the older RFCs which were obsoleted by</div><div>this newest one. I was interested whether the dot was allowed in former RFCs.</div><div><br></div><div>But neither the original RFC822 (1982)</div><div><span class="Apple-style-span" style="font-family: Times; font-size: 16px; "><pre class="newpage" style="font-size: 1em; margin-top: 0px; margin-bottom: 0px; page-break-before: always; ">msg-id = "<" addr-spec ">"</pre><pre class="newpage" style="font-size: 1em; margin-top: 0px; margin-bottom: 0px; page-break-before: always; "><span class="Apple-style-span" style="font-family: Times; white-space: normal; "><pre class="newpage" style="font-size: 1em; margin-top: 0px; margin-bottom: 0px; page-break-before: always; ">addr-spec = local-part "@" domain</pre></span><div><div style="font-family: Helvetica; white-space: normal; font-size: medium; "><br></div><div style="font-family: Helvetica; white-space: normal; font-size: medium; ">nor RFC2822 (2001) allowed it.</div><div style="font-family: Helvetica; white-space: normal; font-size: medium; "><span class="Apple-style-span" style="font-family: Times; font-size: 16px; "></span></div></div></pre></span><div><span class="Apple-style-span" style="font-family: Times; font-size: 16px; "><pre class="newpage" style="font-size: 1em; margin-top: 0px; margin-bottom: 0px; page-break-before: always; ">msg-id = [CFWS] "<" id-left "@" id-right ">" [CFWS]</pre></span><div><br></div></div></div><div>Joerg</div><div><br></div></body></html>