diff --git a/docs/contact/files/zertifikat-smime.txt b/docs/contact/files/zertifikat-smime.txt
index dde46a1..0fd164e 100644
--- a/docs/contact/files/zertifikat-smime.txt
+++ b/docs/contact/files/zertifikat-smime.txt
@@ -1,33 +1,33 @@
-----BEGIN CERTIFICATE-----
-MIIGyzCCBLOgAwIBAgIQPkS7HHd0/ppP1bSbNKGfnzANBgkqhkiG9w0BAQsFADBOMQswCQYDVQQG
+MIIGyzCCBLOgAwIBAgIQS5jNf61YmdkypKT6QTsXIDANBgkqhkiG9w0BAQsFADBOMQswCQYDVQQG
EwJQTDEhMB8GA1UECgwYQXNzZWNvIERhdGEgU3lzdGVtcyBTLkEuMRwwGgYDVQQDDBNDZXJ0dW0g
-U01JTUUgUlNBIENBMB4XDTI0MTIyNDAyMzkyMVoXDTI1MTIyNDAyMzkyMFowPDEZMBcGA1UEAwwQ
+U01JTUUgUlNBIENBMB4XDTI1MTIyMzEyMzk1MFoXDTI2MTIyMzEyMzk0OVowPDEZMBcGA1UEAwwQ
c3RlcGhhbkBoYWRhbi5kZTEfMB0GCSqGSIb3DQEJARYQc3RlcGhhbkBoYWRhbi5kZTCCAiIwDQYJ
-KoZIhvcNAQEBBQADggIPADCCAgoCggIBAJvt0mI21/2DrH5KgzmPpUyNCYhPyfLxsUc1J7+S+CfK
-xv1DkSWVMOzl6OHtN6wd16SXYUxjgMelaiMNIUi7PE1fRzE0JTVfWrx+chJxPcNqnwmwDBAqPCp5
-FFgQws3u7saLb22tcdj3Bek4FmyqEYRrsdVYXXRRbpUg8/efZT5adDXSmcvr0qTCWEsiXmoOWPKX
-Qw5Ln97FdR3jVP0zoG+SilHSlpotq/unqtBNBCQ4DjtQPJnanb1OvQd1S4U+JmPexWHQJEnJx3nF
-mxXcMScFQ454X2EX+EVVn/uATNK6cibfisyuY5tCtqYhcmnkCuWkFt9uWH8c44NhHPS5mP8tHl5m
-HFAneX/Sc+2VC8bUPNcXLOqDb45Y7W773/yH1HzFDOFHpch1vSN1UKoPKD3E20roIU9IyOiHeoCu
-aWebpczesZUqPLs5roFjQ2xzeGUuW+D43aujtmxTMuhkUecRLJeAKoYoiWg1c71FRD5W2y7Ai+xz
-VvwukA0A/rcSNncERtSV7QXDskTBQyi43Oy5+94ZEa6vKj+CAgxmgZby1jqTDrOMvGlPgjeMWCMq
-cZwtZBdtaGCqpTkX+YYF3Exgyd0Ib/vpxOITQ61W/9rCNaI1jpQUkV4bs+JTUMccfn6jJnIJ8gCM
-eAFxNxX9lRxRihNAKNMunSXig7vQ+EbJAgMBAAGjggG1MIIBsTAMBgNVHRMBAf8EAjAAMEEGA1Ud
+KoZIhvcNAQEBBQADggIPADCCAgoCggIBAOwC+rinOug07yjRirnGI7m7iJ3OrqNnS7OnT31UjSER
+L6Wf0KlwFrqgb1IuqrQCnhMI/KsmwGUP4wuxE64GZnrLrNmEBxp6JTtE4cv/kQU47Nw9tWBDCvgW
+a1Zpmme9O98fLT0vWLlC74VlqklVDawMO+II/OrAmwXa+Y+PeOE/0HLxbiFJmw/VEs/QWNYIlqsu
+7cTLwPLH7W0Tpkc5uXxP4FLU/+UXsve74RR2tu7A4W13t4jd7cIGGv7FXEsfsOg5g1D/Nu7kATWk
+PrM8NaRQxkxFlqO6P3r3gi6MDp7gZy3PKz1k0IS6rSy1OcuGBcLvtLHeve4v47N+tZi248v0RSSd
+mfvZvF9M/1PuARxCeCO+jI2/x2rHwMW0tukYblJ22DIB/OH3GmCFcD3iXdNVtvFh+IQCGx2v8OQl
+cYMp0YEa4KXBLLG/KLZ2R0UpO8+0WQVEK5Eme0kDePnBrnVwgG1P3XcGteq8ixdtysNvnXVKklQp
+FKuN1ZwplCxMQBIHvp62bTkSFXVLVdQ5rvdjWas9CzAtiEe+Ward+UXUpaliLBv6W9JofsLOSpeJ
+gqWzVa3FhsZr2co7WXvp5Hx3U7yQ6rWmNyswvwdeYRIhs4UpbJH08vQorCh+gnDjWapoOYnDy0Xj
+Dlpxv3VFO9GKOISnNBwx8G1inD2zs3fjAgMBAAGjggG1MIIBsTAMBgNVHRMBAf8EAjAAMEEGA1Ud
HwQ6MDgwNqA0oDKGMGh0dHA6Ly9jc21pbWVyc2FjYS5jcmwuY2VydHVtLnBsL2NzbWltZXJzYWNh
LmNybDCBgwYIKwYBBQUHAQEEdzB1MC4GCCsGAQUFBzABhiJodHRwOi8vY3NtaW1lcnNhY2Eub2Nz
cC1jZXJ0dW0uY29tMEMGCCsGAQUFBzAChjdodHRwOi8vY3NtaW1lcnNhY2EucmVwb3NpdG9yeS5j
ZXJ0dW0ucGwvY3NtaW1lcnNhY2EuY2VyMB8GA1UdIwQYMBaAFGb7ww++9L/gnMmrTd5HGb3AyqZo
-MB0GA1UdDgQWBBT6GKV8KfyqTzVlR3QgGttLFVHC0zBMBgNVHSAERTBDMAkGB2eBDAEFAQIwNgYL
+MB0GA1UdDgQWBBRiNfkWn//eXfi0uiNI2YgKGsFs6DBMBgNVHSAERTBDMAkGB2eBDAEFAQIwNgYL
KoRoAYb2dwJkAgEwJzAlBggrBgEFBQcCARYZaHR0cHM6Ly93d3cuY2VydHVtLnBsL0NQUzAdBgNV
HSUEFjAUBggrBgEFBQcDBAYIKwYBBQUHAwIwDgYDVR0PAQH/BAQDAgTwMBsGA1UdEQQUMBKBEHN0
-ZXBoYW5AaGFkYW4uZGUwDQYJKoZIhvcNAQELBQADggIBAK6f8SBAXoZHHZrotmmidC7e0EH/f4P8
-RPUBGjykygxho9qaKtyde80K3kQjvo4GlE89qmToIY3Y69zBh3YnGj7EwRtPC1X6RurDsA4TkfmH
-AQFgttIjzUHElMdHI4Cbq4DE4WdLNBCjne5okcqnR4ImI9u6WGyLHOG3MPa59WSv60fiqh96Yk2k
-3j2Qlnb3eEQgfhEfhrmxup14kazhZtQv5Gw7yNnwGqWGGvrJkVzCWYjdI4pZzf6p/L4qyYsT9bGK
-SEumOFKjicHATZVHFQBp8MVyLIYJ2FtaCnE+f7U9UuW12bGMSP15XlhGfe6ykgHGzrfx9/lzVVPO
-4IUtFeD99RG5XkGE3yZhx8JMMIXA+/kyJJFKSm8rNHe6JSGexPI0bQfzrdgk45EevgxF63LS4cys
-fIzcbL9IwwWv6RyIzPuKJMpsZaOzq5rY6MykFRUveG2q0vaWtQ576vCRP07FtJjauG9CnH0zsuWL
-b4XrYPOIbArd0I7tvcaII5kr36AJ7KuSYMRq4t3n1RP/7GtQLOM1WNOgOAHVHyXaZJ8u2e2T4Jte
-+nacmIU/Ge1YXgPZP1xH/eb9vnRuHMOB7uPgEo4YX/XPe6V9k1hiWgAhsLJls8lB1nJZEVmc31Re
-ix7SuOKfgXZB0s3gyMxuVJcwRIMW34qM4/uXg1rev6Iq
+ZXBoYW5AaGFkYW4uZGUwDQYJKoZIhvcNAQELBQADggIBAEaROtmwNd/pzkvWnMilgNjlkfT3s6PE
+U3OpYTqCZIqdEYPj2+M68+MXDOwYWXNsV8YBa9obn3NddroVNE0FcSfealpro4gRyUbmkOjRts3I
+QnbrMwPVi086JXDwKJP/OkkJ+m6HkBxKx9pycw7AV5S516RUbWLLoL98lgkq4MYNdB2VKhYLkkT+
+uZe2r5gDm86OsaOiv7+RvQEohmN9teiJ30/oC2oGc7DeU6TJEzBJy9vMJUFQznhLn7+BUrMAr3jz
+BArgassgXmneBHOx5mvmZlhx9328KVbljqRMw4PdmnjUQ+8+vN0Zm0JSeALXb7MlkIlKE81Jupux
+qCz0snXX9ubIBZH1H7X2FpUUllVi/uWGzzRTx8ObKOgpm1G1MTh/BoHLxOYH/joosP5Mh+KtwhJp
+LdsojUs/eoJEcJtnV0k85W+3+swbb3gbfZVmGKKLIXpon1MKOmCOY/H6oigFvR3PePOfU+q/mde9
+UFppDziqliJ9ovIQzo5A5LYUT5OBy11A1rFHJpuNH2Z4flYFTBcGqpryOdmevCAEkuXi8TagF/IY
+9cZcKvnDSaeF+xfE/AyXt2k2AqbFDB7kxragXr9C+M3teRH93zmMw6VOafejnsuWaiWXrntPT91H
+o7urITXGz4GocPZKI9nDTxutmgt9yBR+sBHwOdkxGZip
-----END CERTIFICATE-----
\ No newline at end of file
diff --git a/docs/contact/index.md b/docs/contact/index.md
index 5b3b56c..bb3f36c 100644
--- a/docs/contact/index.md
+++ b/docs/contact/index.md
@@ -47,8 +47,8 @@ Bitte verifiziert den Fingerprint des (öffentlichen) Schlüssels bzw. bezieht d
**S/MIME-Zertifikat (public):** [zertifikat-smime.txt](files/zertifikat-smime.txt)
**Fingerprint:**
-F2A1 1AFF C797 BE51 D67F 0EE6 92FA 3DE8
-0058 4E10 C724 ED0D 7F46 14AB 492C 1824
+4DD7 A741 C7ED 2811 D484 A3AF 3FE1 8337
+E4B2 90F0 7BD7 D4D8 C389 4664 249B C9DF
## Messenger / Kommunikationsplattformen