Warren Toomey:
> Warren wrote:
> > > One of my list members has his own SMTP server. He's configured it to 
> > > return
> > > a large multiline response to the initial EHLO from a client. Apparently
> > > when my Postfix installation connects to him, it sits idly after the 
> > > multiline
> > > response and never goes on to issue further SMTP commands.
>  
> On Wed, Jun 26, 2019 at 06:46:37AM -0400, Wietse Venema wrote:
> > What is the IP address?
> 
> aneurin.horsfall.org[110.141.193.233] and the person is dave@
> that domain.

They have a very long 220 greeting message but that has no effect on my Postfix.

        Wietse

Result from 'sendmail -bv d...@...urin.horsfall.org':

--45Yvl35r1xzJrNv.1561580980/spike.porcupine.org
Content-Description: Notification
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit

This is the mail system at host spike.porcupine.org.

Enclosed is the mail delivery report that you requested.

                   The mail system

<d...@...urin.horsfall.org>: delivery via
    aneurin.horsfall.org[110.141.193.233]:25: 250 2.1.5
    <d...@...urin.horsfall.org>... Recipient ok

--45Yvl35r1xzJrNv.1561580980/spike.porcupine.org
Content-Description: Delivery report
Content-Type: message/delivery-status

Reporting-MTA: dns; spike.porcupine.org
X-Postfix-Queue-ID: 45Yvl35r1xzJrNv
X-Postfix-Sender: rfc822; wie...@porcupine.org
Arrival-Date: Wed, 26 Jun 2019 16:29:19 -0400 (EDT)

Final-Recipient: rfc822; d...@...urin.horsfall.org
Original-Recipient: rfc822;d...@...urin.horsfall.org
Action: deliverable
Status: 2.1.5
Remote-MTA: dns; aneurin.horsfall.org
Diagnostic-Code: smtp; 250 2.1.5 <d...@...urin.horsfall.org>... Recipient ok

--45Yvl35r1xzJrNv.1561580980/spike.porcupine.org
Content-Description: Message Headers
Content-Type: text/rfc822-headers
Content-Transfer-Encoding: 8bit

Return-Path: <wie...@porcupine.org>
Received: by spike.porcupine.org (Postfix, from userid 1001)
        id 45Yvl35r1xzJrNv; Wed, 26 Jun 2019 16:29:19 -0400 (EDT)
DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=porcupine.org;
        s=dktest; t=1561580959;
        bh=frcCV1k9oG9oKj3dpUqdJg1PxRT2RSN/XKdLCPjaYaY=;
        h=From:Subject:To:Message-Id:Date;
        b=otckF3Q7XRyNj4bQbQiAYks8Ikctzuea2+YCkOQfJcEvanhCw2ZEPsKRF7UMjZK2M
         G1Ynan3zFRZMdDwYblupikAHRodReOypCwt+kAzkpG2aOM60YK6Md0YJa9wdCN1iW4
         xFCCLDf0MZpjmo8nreau5iBqvlRw7WuytTv4NTEE=
From: wie...@porcupine.org
Subject: probe
To:     d...@...urin.horsfall.org
Message-Id: <45yvl35r1xzj...@spike.porcupine.org>
Date: Wed, 26 Jun 2019 16:29:19 -0400 (EDT)

--45Yvl35r1xzJrNv.1561580980/spike.porcupine.org--

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