<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<p>Macht dann Sinn wenn die Daten beim Empfänger ankommen, aber die
Rückmeldung das 250 OK erreicht den Sender nicht mehr.<br>
Somit glaubt der Sender der Versand wäre noch nicht erfolgreich
und probiert es erneut.</p>
<p>Hatte so etwas schon mal mit einem internen Server hinter einer
Firewall, die dann irgendetwas in der Mail erkannt hat und
daraufhin einfach die Verbindung unterbrochen hat.</p>
<p>Gruß Philipp<br>
</p>
<div class="moz-cite-prefix">Am 18.06.21 um 16:27 schrieb Frank
Fiene:<br>
</div>
<blockquote type="cite"
cite="mid:39185871-10A7-48E8-8E7F-A26119727B41@veka.com">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
Ja, das ist das übliche Verhalten eines IPS.
<div class=""><br class="">
</div>
<div class="">Nur das die Mails dann ankommen macht keinen Sinn.
:-D</div>
<div class=""><br class="">
</div>
<div class="">Da muss ich wohl nochmal schauen. :-(</div>
<div class=""><br class="">
</div>
<div class="">Danke<br class="">
<div><br class="">
<blockquote type="cite" class="">
<div class="">Am 18.06.2021 um 14:26 schrieb Ralf
Hildebrandt <<a
href="mailto:Ralf.Hildebrandt@charite.de" class=""
moz-do-not-send="true">Ralf.Hildebrandt@charite.de</a>>:</div>
<br class="Apple-interchange-newline">
<div class="">
<meta charset="UTF-8" class="">
<span style="caret-color: rgb(0, 0, 0); font-family:
Helvetica; font-size: 12px; font-style: normal;
font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; text-align: start; text-indent:
0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none; float: none; display: inline
!important;" class="">* Frank Fiene <</span><a
href="mailto:ffiene@veka.com" style="font-family:
Helvetica; font-size: 12px; font-style: normal;
font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; orphans: auto; text-align:
start; text-indent: 0px; text-transform: none;
white-space: normal; widows: auto; word-spacing: 0px;
-webkit-text-size-adjust: auto;
-webkit-text-stroke-width: 0px;" class=""
moz-do-not-send="true">ffiene@veka.com</a><span
style="caret-color: rgb(0, 0, 0); font-family:
Helvetica; font-size: 12px; font-style: normal;
font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; text-align: start; text-indent:
0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none; float: none; display: inline
!important;" class="">>:</span><br
style="caret-color: rgb(0, 0, 0); font-family:
Helvetica; font-size: 12px; font-style: normal;
font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; text-align: start; text-indent:
0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none;" class="">
<blockquote type="cite" style="font-family: Helvetica;
font-size: 12px; font-style: normal; font-variant-caps:
normal; font-weight: normal; letter-spacing: normal;
orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-size-adjust: auto;
-webkit-text-stroke-width: 0px; text-decoration: none;"
class="">Moin!<br class="">
<br class="">
Ich habe hunderte dieser Meldungen auf meinen Gateways,
komischerweise nur mit Mails von einem Absender:<br
class="">
<br class="">
Jun 17 14:14:19 smtp1 postfix/qmgr[1271]: EC7F2AF8C:
from=<absender>, size=64007139, nrcpt=1 (queue
active)<br class="">
Jun 17 14:15:13 smtp1 postfix/smtp[27022]: EC7F2AF8C:
to=<empfaenger>,
relay=10.201.1.64[10.201.1.64]:25, delay=60,
delays=6.8/0/0/54, dsn=4.4.2, status=deferred (lost
connection with 10.201.1.64[10.201.1.64] while sending
end of data -- message may be sent more than once)<br
class="">
Jun 17 14:21:45 smtp1 postfix/qmgr[1271]: EC7F2AF8C:
from=<absender>, size=64007139, nrcpt=1 (queue
active)<br class="">
Jun 17 14:22:39 smtp1 postfix/smtp[27022]: EC7F2AF8C:
to=<empfaenger>,
relay=10.201.1.64[10.201.1.64]:25, delay=507,
delays=453/0/0/54, dsn=4.4.2, status=deferred (lost
connection with 10.201.1.64[10.201.1.64] while sending
end of data -- message may be sent more than once)<br
class="">
Jun 17 14:31:45 smtp1 postfix/qmgr[1271]: EC7F2AF8C:
from=<absender>, size=64007139, nrcpt=1 (queue
active)<br class="">
Jun 17 14:32:37 smtp1 postfix/smtp[27602]: EC7F2AF8C:
to=<empfaenger>,
relay=10.201.1.64[10.201.1.64]:25, delay=1105,
delays=1052/0/0/52, dsn=4.4.2, status=deferred (lost
connection with 10.201.1.64[10.201.1.64] while sending
end of data -- message may be sent more than once)<br
class="">
<br class="">
Und genau wie Postfix sagt: message may be sent more
than once<br class="">
Alleine 28 mit dieser queue id sind im Backend
angekommen, immer an denselben Empfänger.<br class="">
<br class="">
Ich habe da einen HA-Proxy vor zwei Domino Servern.<br
class="">
<br class="">
Wo würdet ihr zuerst schauen, auf dem Domino Backend?<br
class="">
Den Admins fällt da nichts auf. Da steht im Log, Mail
angenommen und an den Empfänger weitergeleitet.<br
class="">
<br class="">
Firewalls und IPS unterbrechen den Traffic hier nicht.
Das habe ich schon geprüft.<br class="">
</blockquote>
<br style="caret-color: rgb(0, 0, 0); font-family:
Helvetica; font-size: 12px; font-style: normal;
font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; text-align: start; text-indent:
0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none;" class="">
<span style="caret-color: rgb(0, 0, 0); font-family:
Helvetica; font-size: 12px; font-style: normal;
font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; text-align: start; text-indent:
0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none; float: none; display: inline
!important;" class="">Klassiker wäre hier eine CISCO PIX
oder ASA</span><br style="caret-color: rgb(0, 0, 0);
font-family: Helvetica; font-size: 12px; font-style:
normal; font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; text-align: start; text-indent:
0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none;" class="">
<br style="caret-color: rgb(0, 0, 0); font-family:
Helvetica; font-size: 12px; font-style: normal;
font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; text-align: start; text-indent:
0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none;" class="">
<span style="caret-color: rgb(0, 0, 0); font-family:
Helvetica; font-size: 12px; font-style: normal;
font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; text-align: start; text-indent:
0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none; float: none; display: inline
!important;" class="">--<span
class="Apple-converted-space"> </span></span><br
style="caret-color: rgb(0, 0, 0); font-family:
Helvetica; font-size: 12px; font-style: normal;
font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; text-align: start; text-indent:
0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none;" class="">
<span style="caret-color: rgb(0, 0, 0); font-family:
Helvetica; font-size: 12px; font-style: normal;
font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; text-align: start; text-indent:
0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none; float: none; display: inline
!important;" class="">Ralf Hildebrandt</span><br
style="caret-color: rgb(0, 0, 0); font-family:
Helvetica; font-size: 12px; font-style: normal;
font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; text-align: start; text-indent:
0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none;" class="">
<span style="caret-color: rgb(0, 0, 0); font-family:
Helvetica; font-size: 12px; font-style: normal;
font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; text-align: start; text-indent:
0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none; float: none; display: inline
!important;" class=""> Geschäftsbereich IT | Abteilung
Netzwerk</span><br style="caret-color: rgb(0, 0, 0);
font-family: Helvetica; font-size: 12px; font-style:
normal; font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; text-align: start; text-indent:
0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none;" class="">
<span style="caret-color: rgb(0, 0, 0); font-family:
Helvetica; font-size: 12px; font-style: normal;
font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; text-align: start; text-indent:
0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none; float: none; display: inline
!important;" class=""> Charité - Universitätsmedizin
Berlin</span><br style="caret-color: rgb(0, 0, 0);
font-family: Helvetica; font-size: 12px; font-style:
normal; font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; text-align: start; text-indent:
0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none;" class="">
<span style="caret-color: rgb(0, 0, 0); font-family:
Helvetica; font-size: 12px; font-style: normal;
font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; text-align: start; text-indent:
0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none; float: none; display: inline
!important;" class=""> Campus Benjamin Franklin</span><br
style="caret-color: rgb(0, 0, 0); font-family:
Helvetica; font-size: 12px; font-style: normal;
font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; text-align: start; text-indent:
0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none;" class="">
<span style="caret-color: rgb(0, 0, 0); font-family:
Helvetica; font-size: 12px; font-style: normal;
font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; text-align: start; text-indent:
0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none; float: none; display: inline
!important;" class=""> Hindenburgdamm 30 | D-12203
Berlin</span><br style="caret-color: rgb(0, 0, 0);
font-family: Helvetica; font-size: 12px; font-style:
normal; font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; text-align: start; text-indent:
0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none;" class="">
<span style="caret-color: rgb(0, 0, 0); font-family:
Helvetica; font-size: 12px; font-style: normal;
font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; text-align: start; text-indent:
0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none; float: none; display: inline
!important;" class=""> Tel. +49 30 450 570 155 | Fax:
+49 30 450 570 962</span><br style="caret-color: rgb(0,
0, 0); font-family: Helvetica; font-size: 12px;
font-style: normal; font-variant-caps: normal;
font-weight: normal; letter-spacing: normal; text-align:
start; text-indent: 0px; text-transform: none;
white-space: normal; word-spacing: 0px;
-webkit-text-stroke-width: 0px; text-decoration: none;"
class="">
<span style="caret-color: rgb(0, 0, 0); font-family:
Helvetica; font-size: 12px; font-style: normal;
font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; text-align: start; text-indent:
0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none; float: none; display: inline
!important;" class=""> </span><a
href="mailto:ralf.hildebrandt@charite.de"
style="font-family: Helvetica; font-size: 12px;
font-style: normal; font-variant-caps: normal;
font-weight: normal; letter-spacing: normal; orphans:
auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-size-adjust: auto;
-webkit-text-stroke-width: 0px;" class=""
moz-do-not-send="true">ralf.hildebrandt@charite.de</a><span
style="caret-color: rgb(0, 0, 0); font-family:
Helvetica; font-size: 12px; font-style: normal;
font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; text-align: start; text-indent:
0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none; float: none; display: inline
!important;" class=""><span
class="Apple-converted-space"> </span>|<span
class="Apple-converted-space"> </span></span><a
href="https://www.charite.de/" style="font-family:
Helvetica; font-size: 12px; font-style: normal;
font-variant-caps: normal; font-weight: normal;
letter-spacing: normal; orphans: auto; text-align:
start; text-indent: 0px; text-transform: none;
white-space: normal; widows: auto; word-spacing: 0px;
-webkit-text-size-adjust: auto;
-webkit-text-stroke-width: 0px;" class=""
moz-do-not-send="true">https://www.charite.de</a></div>
</blockquote>
</div>
<br class="">
<div class="">
<div dir="auto" style="caret-color: rgb(0, 0, 0); color:
rgb(0, 0, 0); letter-spacing: normal; text-align: start;
text-indent: 0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none; word-wrap: break-word;
-webkit-nbsp-mode: space; line-break: after-white-space;"
class="">
<div dir="auto" style="caret-color: rgb(0, 0, 0); color:
rgb(0, 0, 0); letter-spacing: normal; text-align: start;
text-indent: 0px; text-transform: none; white-space:
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none; word-wrap: break-word;
-webkit-nbsp-mode: space; line-break: after-white-space;"
class="">
<div>Viele Grüße!<br class="">
i.A. Frank Fiene<br class="">
-- <br class="">
Frank Fiene<br class="">
IT-Security Manager VEKA Group<br class="">
<br class="">
Fon: +49 2526 29-6200<br class="">
Fax: +49 2526 29-16-6200<br class="">
mailto: <a href="mailto:ffiene@veka.com" class=""
moz-do-not-send="true">ffiene@veka.com</a><br class="">
<a href="http://www.veka.com" class=""
moz-do-not-send="true">http://www.veka.com</a><br
class="">
<br class="">
PGP-ID: 62112A51<br class="">
PGP-Fingerprint: 7E12 D61B 40F0 212D 5A55 765D 2A3B B29B
6211 2A51<br class="">
Threema: VZK5NDWW<br class="">
<br class="">
VEKA AKTIENGESELLSCHAFT <br class="">
Dieselstr. 8 <br class="">
48324 Sendenhorst <br class="">
Deutschland/Germany <br class="">
<a class="moz-txt-link-freetext" href="http://www.veka.com">http://www.veka.com</a> <br class="">
<br class="">
Vorstand/Executive Board: Andreas Hartleif
(Vorsitzender/CEO), <br class="">
Pascal Heitmar, Josef L. Beckhoff, Elke Hartleif, Dr.
Werner Schuler, <br class="">
Vorsitzender des Aufsichtsrates/Chairman of
Supervisory Board: Dr. Andreas W. Hillebrand <br
class="">
<br class="">
HRB 8282 AG Münster/District Court of Münster</div>
</div>
</div>
</div>
<br class="">
</div>
</blockquote>
</body>
</html>