<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">On 1. Sep 2020, at 6.24, TACHIBANA Masashi <<a href="mailto:tachibana@qualitia.co.jp" class="">tachibana@qualitia.co.jp</a>> wrote:<br class=""><div><blockquote type="cite" class=""><br class="Apple-interchange-newline"><div class=""><div class="">Hi,<br class=""><br class="">Is this expected or not?<br class=""><br class="">From: <a href="mailto:user1@fuga.example.com" class="">user1@fuga.example.com</a> <<a href="mailto:user1@example.com" class="">user1@example.com</a>><br class="">To: <a href="mailto:user2@hoge.example.com" class="">user2@hoge.example.com</a> <<a href="mailto:user2@example.com" class="">user2@example.com</a>><br class="">↓<br class="">a uid fetch 43055 (envelope)<br class="">* 1860 FETCH (UID 43055 ENVELOPE ("Thu, 30 Jul 2020 13:52:59 +0900" "test1" ((NIL NIL "user1" "<a href="http://fuga.example.com" class="">fuga.example.com</a>")) ((NIL NIL "user1" "<a href="http://fuga.example.com" class="">fuga.example.com</a>")) ((NIL NIL "user1" "<a href="http://fuga.example.com" class="">fuga.example.com</a>")) ((NIL NIL "user2" "<a href="http://hoge.example.com" class="">hoge.example.com</a>")) NIL NIL NIL "<WLXvFmpAZFNeQbPPITjRwimDyamnBm1@test>"))<br class=""></div></div></blockquote><div><br class=""></div><div>This is an invalid email address, so it's neither correct nor incorrect to have this output. But this reminded me that I was going to discuss about this with other IETF people. Lets see what others think: <a href="https://mailarchive.ietf.org/arch/msg/extra/sqRTdsV_DGBhHu2ghdCDFo_pM8Q/" class="">https://mailarchive.ietf.org/arch/msg/extra/sqRTdsV_DGBhHu2ghdCDFo_pM8Q/</a></div><br class=""><blockquote type="cite" class=""><div class=""><div class="">From: "<a href="mailto:user1@fuga.example.com" class="">user1@fuga.example.com</a>" <<a href="mailto:user1@example.com" class="">user1@example.com</a>><br class="">To: "<a href="mailto:user2@hoge.example.com" class="">user2@hoge.example.com</a>" <<a href="mailto:user2@example.com" class="">user2@example.com</a>><br class="">↓<br class="">a uid fetch 43056 (envelope)<br class="">* 1861 FETCH (UID 43056 ENVELOPE ("Thu, 30 Jul 2020 13:53:59 +0900" "test1" (("<a href="mailto:user1@fuga.example.com" class="">user1@fuga.example.com</a>" NIL "user1" "<a href="http://example.com" class="">example.com</a>")) (("<a href="mailto:user1@fuga.example.com" class="">user1@fuga.example.com</a>" NIL "user1" "<a href="http://example.com" class="">example.com</a>")) (("<a href="mailto:user1@fuga.example.com" class="">user1@fuga.example.com</a>" NIL "user1" "<a href="http://example.com" class="">example.com</a>")) (("<a href="mailto:user2@hoge.example.com" class="">user2@hoge.example.com</a>" NIL "user2" "<a href="http://example.com" class="">example.com</a>")) NIL NIL NIL "<WLXvFmpAZFNeQbPPITjRwimDyamnBm2@test>"))<br class=""></div></div></blockquote></div><br class=""><div class="">This is a valid email address, and ENVELOPE reply is correct.</div><div class=""><br class=""></div></body></html>