external smtp Plesk 'the server sent an empty reply'
<p>Situation:</p>

<p>I got a Domain hosted on "strato.de" and i got a Linux Server hosted by "hetzner.de".</p>

<p>Domain configuration:</p>

<pre><code>A Record -&gt; Linux Server IP
MX Record -&gt; Use Strato Intern Mailserver
</code></pre>

<p>Server configuration:</p>

<pre><code>Hostname -&gt; Domainname from Strato
</code></pre>

<hr>

<p>I used "external SMTP Server in Plesk"</p>

<pre><code>Host: smtp.strato.de
Post: 465
Username: **Username**
Password: **Password**
</code></pre>

<p>my /var/log/mail says </p>

<pre><code>Jun 10 07:59:34 **DOMAIN** msmtp: host=smtp.strato.de tls=on auth=on user=info@**DOMAIN** from=**DOMAIN**@**DOMAIN**.de recipients=**RECIP@EXAMPLE.COM** errormsg='the server sent an empty reply' exitcode=EX_PROTOCOL
</code></pre>

<p>I already installed a fresh Plesk/Linux and I also tried to set the MX record to the Server and tried to use SMTP Server on the Linux. That didn't work either.</p>

<hr>

<p>GOAL:</p>

<p>I want the domain from Strato to point to the Hetzner Linux Server (done A-Record).</p>

<p>I want the emails that the server generates to be sent; I already had this one working but the server sent emails with IP not with the pre-bind Domain. that's bad for GMX because they refuse mails from IP Sources.</p>

<p>Can someone give me advice ? </p>