<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi Daniel,<div class=""><br class=""></div><div class="">Am 10.01.2018 um 12:42 schrieb Daniel <<a href="mailto:daniel@mail24.vip" class="">daniel@mail24.vip</a>>:</div><div class=""><br class=""><div><blockquote type="cite" class=""><div class=""><div class="">Sich bei BNetzA beschweren weil man sich selbst nicht an Standards hält?<br class=""><br class=""></div></div></blockquote></div><br class=""></div><div class="">Submission ist eine Option aber kein Standard. Wie RFC 6409 so schoen erklaert:</div><div class=""><br class=""></div><div class=""><pre class="newpage" style="font-size: 13.3333px; margin-top: 0px; margin-bottom: 0px; break-before: page; font-variant-ligatures: normal; orphans: 2; widows: 2;"><span class="h3" style="line-height: 0pt; display: inline; font-size: 1em; font-weight: bold;"><a class="selflink" name="section-3.1" href="https://tools.ietf.org/html/rfc6409#section-3.1" data-ss1515587682="1" style="color: black; text-decoration: none;">3.1</a>. Submission Identification</span>
Port 587 is reserved for email message submission as specified in
this document. Messages received on this port are defined to be
submissions. The protocol used is ESMTP [<a href="https://tools.ietf.org/html/rfc6409#ref-SMTP-MTA" title=""Simple Mail Transfer Protocol"" data-ss1515587682="1" class="">SMTP-MTA</a>], with additional
restrictions or allowances as specified here.
Although most email clients and servers can be configured to use port
587 instead of 25, there are cases where this is not possible or
convenient. A site MAY choose to use port 25 for message submission
by designating some hosts to be MSAs and others to be MTAs.</pre><div class=""><br class=""></div></div><div class="">Es steht dem Anbieter also frei ob er Submission auf dem dedizierten Port anbietet oder nicht.</div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">Winni</div></body></html>