<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Allerdings, auf einem dritten, frisch eingerichteten Server Ubuntu 22.04 (Hetzner) bekomme ich:<div class=""><br class=""></div><div class=""><div style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; font-family: Courier; color: rgb(119, 97, 0); background-color: rgb(187, 255, 220);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">curl -v --ipv6 <a href="smtp://mx1h1.comcast.net" class="">smtp://mx1h1.comcast.net</a></span></div><div style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; font-family: Courier; color: rgb(119, 97, 0); background-color: rgb(187, 255, 220);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">* Trying 2001:558:fd02:243f::2:25...</span></div><div style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; font-family: Courier; color: rgb(119, 97, 0); background-color: rgb(187, 255, 220);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">* Connected to <a href="http://mx1h1.comcast.net" class="">mx1h1.comcast.net</a> (2001:558:fd02:243f::2) port 25 (#0)</span></div><div style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; font-family: Courier; color: rgb(119, 97, 0); background-color: rgb(187, 255, 220);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">< 554 <a href="http://resimta-h1p-037530.sys.comcast.net" class="">resimta-h1p-037530.sys.comcast.net</a> <a href="http://resimta-h1p-037530.sys.comcast.net" class="">resimta-h1p-037530.sys.comcast.net</a> 2a01:4f9:c011:6a5b::1 Comcast requires that all mail servers must have a PTR record with a valid Reverse DNS entry. Currently your mail server does not fill that requirement. For more information, refer to: <a href="https://postmaster.comcast.net/smtp-error-codes.php#554" class="">https://postmaster.comcast.net/smtp-error-codes.php#554</a></span></div><div style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; font-family: Courier; color: rgb(119, 97, 0); background-color: rgb(187, 255, 220);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">* Got unexpected smtp-server response: 554</span></div><div style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; font-family: Courier; color: rgb(119, 97, 0); background-color: rgb(187, 255, 220);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">* Closing connection 0</span></div><div style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; font-family: Courier; color: rgb(119, 97, 0); background-color: rgb(187, 255, 220);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">curl: (8) Got unexpected smtp-server response: 554</span></div><div style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; font-family: Courier; color: rgb(119, 97, 0); background-color: rgb(187, 255, 220);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">root@ubuntu-4gb-hel1-1:~# </span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Grüße</span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Christoph</span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div class=""><br class="Apple-interchange-newline">
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<div><br class=""><blockquote type="cite" class=""><div class="">Am 08.09.2023 um 11:07 schrieb Christoph Kukulies <<a href="mailto:kuku@kukulies.org" class="">kuku@kukulies.org</a>>:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html; charset=utf-8" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Habe jetzt ipv6 wieder eingeschaltet, bekomme aber den Fehler weiter:<div class=""><br class=""></div><div class=""><div style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; font-family: Courier; color: rgb(119, 97, 0); background-color: rgb(187, 255, 220);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> curl -v --ipv6 <a href="smtp://mx1h1.comcast.net" class="">smtp://mx1h1.comcast.net</a></span></div><div style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; font-family: Courier; color: rgb(119, 97, 0); background-color: rgb(187, 255, 220);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">* Rebuilt URL to: <a href="smtp://mx1h1.comcast.net/" class="">smtp://mx1h1.comcast.net/</a></span></div><div style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; font-family: Courier; color: rgb(119, 97, 0); background-color: rgb(187, 255, 220);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">* Trying 2001:558:fd02:243f::2...</span></div><div style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; font-family: Courier; color: rgb(119, 97, 0); background-color: rgb(187, 255, 220);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">* TCP_NODELAY set</span></div><div style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; font-family: Courier; color: rgb(119, 97, 0); background-color: rgb(187, 255, 220);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">* Immediate connect fail for 2001:558:fd02:243f::2: Network is unreachable</span></div><div style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; font-family: Courier; color: rgb(119, 97, 0); background-color: rgb(187, 255, 220);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">* Closing connection 0</span></div><div style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; font-family: Courier; color: rgb(119, 97, 0); background-color: rgb(187, 255, 220);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">curl: (7) Couldn't connect to server</span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Und auch auf einem anderen Server (beide bei Hetzner) bekomme ich dies:</span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">curl -v --ipv6 <a href="smtp://mx1h1.comcast.net" class="">smtp://mx1h1.comcast.net</a></span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">* Rebuilt URL to: <a href="smtp://mx1h1.comcast.net/" class="">smtp://mx1h1.comcast.net/</a></span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">* Trying 2001:558:fd02:243f::2...</span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">* TCP_NODELAY set</span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">* Immediate connect fail for 2001:558:fd02:243f::2: Network is unreachable</span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">* Closing connection 0</span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">curl: (7) Couldn't connect to server</span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div class=""><br class="Apple-interchange-newline">
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<div class=""><br class=""><blockquote type="cite" class=""><div class="">Am 07.09.2023 um 03:05 schrieb Alex <<a href="mailto:al-pfusde@none.at" class="">al-pfusde@none.at</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="">curl -v --ipv6<span class="Apple-converted-space"> </span></span><a href="smtp://mx1h1.comcast.net" 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="">smtp://mx1h1.comcast.net</a></div></blockquote></div><br class=""></div><div class="">Grüße</div><div class="">Christoph</div><div class=""><br class=""></div></div></div></blockquote></div><br class=""></div></body></html>