Florian Bierhoff<p>Gerade wurde das aktuelle BSI-Magazin (2025/01) online gestellt in dem es ein Interview zum E-Mail-Sicherheitsjahr 2025 mit der fantastischen Caroline Krohn gibt. Zum ersten Mal wird dabei unser Slogan bzw. Claim "Deine E-Mails, dein digitales Zuhause." genutzt! Ich kann noch immer nicht so richtig fassen, wie viel Aufmerksamkeit das Thema E-Mail-Sicherheit jetzt bekommt :heart_cyber: :mail_smirk:</p><p>Eine englischsprachige Version folgt in ca. 2 Monaten und werde ich dann natürlich auch hier tröten.</p><p><a href="https://www.bsi.bund.de/DE/Service-Navi/Publikationen/BSI-Magazine/bsi-magazine_node.html" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">bsi.bund.de/DE/Service-Navi/Pu</span><span class="invisible">blikationen/BSI-Magazine/bsi-magazine_node.html</span></a></p><p><a href="https://infosec.exchange/tags/MailSecurity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MailSecurity</span></a> <a href="https://infosec.exchange/tags/TeamBSI" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>TeamBSI</span></a></p>
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Florian Bierhoff<p>Die kürzlich veröffentlichte Cyber-Sicherheitsempfehlung "Upgrade für die E-Mail-Sicherheit" ist ein Paradebeispiel für die lösungsorientierte Zusammenarbeit zwischen verschiedenen Abteilungen im BSI. Nur so konnten wir praxisnahe Empfehlungen aussprechen, die auf Beobachtungen der echten Welt da draußen beruhen. Oft können Unternehmen, die E-Mails über eine eigene Domain senden und empfangen, nämlich schon mit überschaubaren Aufwand ihre Sicherheit deutlich verbessern.</p><p><a href="https://www.bsi.bund.de/DE/Service-Navi/Presse/Alle-Meldungen-News/Meldungen/Upgrade-E-Mail-Sicherheit_250526.html" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">bsi.bund.de/DE/Service-Navi/Pr</span><span class="invisible">esse/Alle-Meldungen-News/Meldungen/Upgrade-E-Mail-Sicherheit_250526.html</span></a></p><p><a href="https://infosec.exchange/tags/MailSecurity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MailSecurity</span></a> <a href="https://infosec.exchange/tags/TeamBSI" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>TeamBSI</span></a> <a href="https://infosec.exchange/tags/SPF" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SPF</span></a> <a href="https://infosec.exchange/tags/DKIM" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DKIM</span></a> <a href="https://infosec.exchange/tags/DMARC" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DMARC</span></a> <a href="https://infosec.exchange/tags/STARTTLS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>STARTTLS</span></a> <a href="https://infosec.exchange/tags/DNSSEC" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DNSSEC</span></a> <a href="https://infosec.exchange/tags/DANE" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DANE</span></a> <a href="https://infosec.exchange/tags/MTASTS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MTASTS</span></a> <a href="https://infosec.exchange/tags/TLSRPT" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>TLSRPT</span></a></p>
Peter N. M. Hansteen<p>Ten years plus on "Effective Spam and Malware Countermeasures - Network Noise Reduction Using Free Tools" <a href="https://nxdomain.no/~peter/effective_spam_and_malware_countermeasures.html" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">nxdomain.no/~peter/effective_s</span><span class="invisible">pam_and_malware_countermeasures.html</span></a> still seems to be relevant (mod that we never got <a href="https://mastodon.social/tags/IPv6" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>IPv6</span></a> greylisting done) <a href="https://mastodon.social/tags/malware" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>malware</span></a> <a href="https://mastodon.social/tags/networksecurity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>networksecurity</span></a> <a href="https://mastodon.social/tags/antispam" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>antispam</span></a> <a href="https://mastodon.social/tags/OpenBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OpenBSD</span></a> <a href="https://mastodon.social/tags/internetsecurity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>internetsecurity</span></a>, <a href="https://mastodon.social/tags/networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>networking</span></a> <a href="https://mastodon.social/tags/mailsecurity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>mailsecurity</span></a> <a href="https://mastodon.social/tags/packetfilter" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>packetfilter</span></a> <a href="https://mastodon.social/tags/countermeasures" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>countermeasures</span></a> <a href="https://mastodon.social/tags/networkmail" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>networkmail</span></a> <a href="https://mastodon.social/tags/PF" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PF</span></a> <a href="https://mastodon.social/tags/greylisting" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>greylisting</span></a> <a href="https://mastodon.social/tags/spam" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>spam</span></a> <a href="https://mastodon.social/tags/FreeBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FreeBSD</span></a></p>
Peter N. M. Hansteen<p>The 2014 article "Effective Spam and Malware Countermeasures - Network Noise Reduction Using Free Tools" has been liberated as <a href="https://nxdomain.no/~peter/effective_spam_and_malware_countermeasures.html" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">nxdomain.no/~peter/effective_s</span><span class="invisible">pam_and_malware_countermeasures.html</span></a> - previsously only available tracked as <a href="https://bsdly.blogspot.com/2014/02/effective-spam-and-malware.html" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">bsdly.blogspot.com/2014/02/eff</span><span class="invisible">ective-spam-and-malware.html</span></a>.</p><p>Likely still useful if you follow keywords like <a href="https://mastodon.social/tags/malware" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>malware</span></a> <a href="https://mastodon.social/tags/networksecurity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>networksecurity</span></a> <a href="https://mastodon.social/tags/antispam" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>antispam</span></a> <a href="https://mastodon.social/tags/OpenBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OpenBSD</span></a> <a href="https://mastodon.social/tags/internetsecurity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>internetsecurity</span></a>, <a href="https://mastodon.social/tags/networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>networking</span></a> <a href="https://mastodon.social/tags/mailsecurity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>mailsecurity</span></a> <a href="https://mastodon.social/tags/packetfilter" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>packetfilter</span></a> <a href="https://mastodon.social/tags/countermeasures" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>countermeasures</span></a> <a href="https://mastodon.social/tags/networkmail" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>networkmail</span></a> <a href="https://mastodon.social/tags/PF" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PF</span></a> <a href="https://mastodon.social/tags/greylisting" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>greylisting</span></a> <a href="https://mastodon.social/tags/spam" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>spam</span></a> <a href="https://mastodon.social/tags/FreeBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FreeBSD</span></a> (and now all <a href="https://mastodon.social/tags/tracked" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>tracked</span></a> links to my stuff have an untracked equivalent)</p>
OpenTalk<p>Treffen Sie uns auf der <span class="h-card" translate="no"><a href="https://bonn.social/@FrOSCon" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>FrOSCon</span></a></span> in Bonn!</p><p>Samstag, 17.08.2024, 15:30 Uhr<br><span class="h-card" translate="no"><a href="https://social.heinlein-support.de/@heinleinsupport" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>heinleinsupport</span></a></span>: „Proxmox: Virtualisierung leicht gemacht“</p><p>Sonntag, 18.08.2024, 14:00 Uhr<br>OpenTalk: „Radikales Refactoring mit Rust bei OpenTalk“</p><p>Sonntag, 18.08.2024, 17:00 Uhr<br><span class="h-card" translate="no"><a href="https://social.heinlein-support.de/@heinleinsupport" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>heinleinsupport</span></a></span>: „Rspamd: Open Source-Lösung für Mail-Security“</p><p>Mehr dazu erfahren Sie in unserem Blogbeitrag. 👇</p><p><a href="https://opentalk.eu/de/news/treffen-sie-opentalk-auf-der-froscon-2024" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">opentalk.eu/de/news/treffen-si</span><span class="invisible">e-opentalk-auf-der-froscon-2024</span></a></p><p><a href="https://social.opentalk.eu/tags/FrOSCon2024" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FrOSCon2024</span></a> <a href="https://social.opentalk.eu/tags/OpenSource" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OpenSource</span></a> <a href="https://social.opentalk.eu/tags/Virtualisierung" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Virtualisierung</span></a> <a href="https://social.opentalk.eu/tags/Rust" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Rust</span></a> <a href="https://social.opentalk.eu/tags/MailSecurity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MailSecurity</span></a> <a href="https://social.opentalk.eu/tags/OpenTalk" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OpenTalk</span></a></p>
Internet.nl<p><span class="h-card" translate="no"><a href="https://io.mwl.io/@mwl" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>mwl</span></a></span></p><p><span class="h-card" translate="no"><a href="https://cloudflare.social/@cloudflare" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>cloudflare@cloudflare.social</span></a></span> now also supports inbound DANE for authenticated mail transport encryption: <br>* <a href="https://internet.nl/mail/secureandprosper.com/1191222/#control-panel-27" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">internet.nl/mail/secureandpros</span><span class="invisible">per.com/1191222/#control-panel-27</span></a><br>* <a href="https://twitter.com/VDukhovni/status/1770925638007881797" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">twitter.com/VDukhovni/status/1</span><span class="invisible">770925638007881797</span></a><br><a href="https://mastodon.nl/tags/mailsecurity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>mailsecurity</span></a> <a href="https://mastodon.nl/tags/DANE" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DANE</span></a><br><span class="h-card" translate="no"><a href="https://cloudflare.social/@radar" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>radar</span></a></span> <span class="h-card" translate="no"><a href="https://noc.social/@cloudflare" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>cloudflare@noc.social</span></a></span></p>
Internet.nl<p><span class="h-card" translate="no"><a href="https://io.mwl.io/@mwl" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>mwl</span></a></span> <br>DANE is more and more used for *authenticated* transport encryption of email. Check:<br>* Test: <a href="https://dane.sys4.de" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">dane.sys4.de</span><span class="invisible"></span></a>, <a href="https://stats.dnssec-tools.org/explore/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">stats.dnssec-tools.org/explore</span><span class="invisible">/</span></a>, <a href="https://en.internet.nl/test-mail/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">en.internet.nl/test-mail/</span><span class="invisible"></span></a><br>* Wiki: <a href="https://github.com/baknu/DANE-for-SMTP/wiki" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">github.com/baknu/DANE-for-SMTP</span><span class="invisible">/wiki</span></a><br>* Howto: <a href="https://github.com/internetstandards/toolbox-wiki/blob/master/DANE-for-SMTP-how-to.md" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">github.com/internetstandards/t</span><span class="invisible">oolbox-wiki/blob/master/DANE-for-SMTP-how-to.md</span></a><br>* Blog: <a href="https://blog.apnic.net/2019/11/20/better-mail-security-with-dane-for-smtp/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">blog.apnic.net/2019/11/20/bett</span><span class="invisible">er-mail-security-with-dane-for-smtp/</span></a></p><p>Furthermore, note that MS already supports outbound DANE on Exchange Online and plans to support inbound DANE mid 2024: <br>- <a href="https://techcommunity.microsoft.com/t5/exchange-team-blog/releasing-outbound-smtp-dane-with-dnssec/ba-p/3100920" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">techcommunity.microsoft.com/t5</span><span class="invisible">/exchange-team-blog/releasing-outbound-smtp-dane-with-dnssec/ba-p/3100920</span></a><br>- <a href="https://techcommunity.microsoft.com/t5/exchange-team-blog/implementing-inbound-smtp-dane-with-dnssec-for-exchange-online/ba-p/3939694" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">techcommunity.microsoft.com/t5</span><span class="invisible">/exchange-team-blog/implementing-inbound-smtp-dane-with-dnssec-for-exchange-online/ba-p/3939694</span></a></p><p><a href="https://mastodon.nl/tags/DANE" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DANE</span></a> <a href="https://mastodon.nl/tags/DNSSEC" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DNSSEC</span></a> <a href="https://mastodon.nl/tags/mailsecurity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>mailsecurity</span></a></p>
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