Re: How is EAI mail implemented ?

>> Nobody I've seen tags messages as EAI in their internal queues.
>
> sendmail does:

Huh.  Why does it set the UTF8 flag on MAIL FROM when sending ASCII messages?

Received: from xn--5nq21jyu9d1ta.xn--5nqx41au4nqohsp3axcg.xn--fiqs8s ([IPV6:2606:4300:0:4::1003])
   by mail1.iecc.com ([IPV6:2001:470:1f07:1126:33:5370:616d:6d31])
   with UTF8SMTPS via TCP6 (port 38471/25) id 677736368
   tls TLS1_3_ECDHE_RSA_AES_256_GCM_AEAD; 09 Jun 2021 16:19:36 -0000
Received: from xn--5nq21jyu9d1ta.xn--5nqx41au4nqohsp3axcg.xn--fiqs8s (localhost [127.0.0.1])
         by xn--5nq21jyu9d1ta.xn--5nqx41au4nqohsp3axcg.xn--fiqs8s (8.17.0.2/8.16.1) with UTF8SMTPS id 159GJZfw055740
         (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO)
         for <[email protected]>; Wed, 9 Jun 2021 16:19:35 GMT
         (envelope-from [email protected])
Received: (from eaitest@localhost)
         by xn--5nq21jyu9d1ta.xn--5nqx41au4nqohsp3axcg.xn--fiqs8s (8.17.0.2/8.16.1/Submit) id 159GJZn5055739
         for [email protected]; Wed, 9 Jun 2021 16:19:35 GMT
         (envelope-from [email protected])
Message-Id: <202106091619.159GJZn5055739@xn--5nq21jyu9d1ta.xn--5nqx41au4nqohsp3axcg.xn--fiqs8s>
X-Authentication-Warning: localhost.my.domain: eaitest set sender to [email protected] using -f
From: Test Sender <[email protected]>
To: Test Recipient <[email protected]>
Date: Wed, 09 Jun 2021 16:19:34 +0000
Subject: EAI simple test message 5ea435533e5b10541788


Regards,
John Levine, [email protected], Taughannock Networks, Trumansburg NY
Please consider the environment before reading this e-mail. https://jl.ly