openssl s_client -connect pop.gmx.net:995
CONNECTED(00000003)
depth=1 C = DE, O = Deutsche Telekom Security GmbH, CN = Telekom Security ServerID OV Class 2 CA
verify error:num=20:unable to get local issuer certificate
verify return:1
depth=0 C = DE, O = 1&1 Mail & Media GmbH, ST = Rheinland-Pfalz, L = Montabaur, CN = mail.gmx.net
verify return:1
---
Certificate chain
0 s:C = DE, O = 1&1 Mail & Media GmbH, ST = Rheinland-Pfalz, L = Montabaur, CN = mail.gmx.net
i:C = DE, O = Deutsche Telekom Security GmbH, CN = Telekom Security ServerID OV Class 2 CA
a:PKEY: rsaEncryption, 2048 (bit); sigalg: RSA-SHA256
v:NotBefore: Mar 28 08:50:34 2023 GMT; NotAfter: Apr 1 23:59:59 2024 GMT
1 s:C = DE, O = Deutsche Telekom Security GmbH, CN = Telekom Security ServerID OV Class 2 CA
i:C = DE, O = T-Systems Enterprise Services GmbH, OU = T-Systems Trust Center, CN = T-TeleSec GlobalRoot Class 2
a:PKEY: rsaEncryption, 3072 (bit); sigalg: RSA-SHA256
v:NotBefore: Aug 2 09:16:44 2022 GMT; NotAfter: Aug 2 23:59:59 2027 GMT
---
Server certificate
-----BEGIN CERTIFICATE-----
MIIIpjCCBw6gAwIBAgIQG11vn0hLgj22hvE5CqmCAzANBgkqhkiG9w0BAQsFADBo
MQswCQYDVQQGEwJERTEnMCUGA1UECgweRGV1dHNjaGUgVGVsZWtvbSBTZWN1cml0
eSBHbWJIMTAwLgYDVQQDDCdUZWxla29tIFNlY3VyaXR5IFNlcnZlcklEIE9WIENs
YXNzIDIgQ0EwHhcNMjMwMzI4MDg1MDM0WhcNMjQwNDAxMjM1OTU5WjByMQswCQYD
VQQGEwJERTEeMBwGA1UECgwVMSYxIE1haWwgJiBNZWRpYSBHbWJIMRgwFgYDVQQI
Ew9SaGVpbmxhbmQtUGZhbHoxEjAQBgNVBAcTCU1vbnRhYmF1cjEVMBMGA1UEAxMM
bWFpbC5nbXgubmV0MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwwO6
mJbxGi9UsP3uRlZTRCWtaLaqbq+OAT4F2ed9CrpWSyyBbQCdgsJLVPV7e3/B0DGG
2WZ6bVr8Ev0w4XwY3ZPpBz6zpgaDHUrQ20KH4GVLa9VfL8ed8qTb4lNg7tGB2AKu
5MSgrWfls5qS/yyvdCqeOnQ/gFFY7VnPykH2JGsOzVuE9HC+M6xsu2D6oPT+QNls
4VowDM+XDaqgp39hADdIina2yPCqUYX6/0YbfIvMOYpR4Y/aDtVMxM9XSaBvVBqU
8qBkApI2mY+iZWRci3TzM2ttYcuKOYYq5zIUkwDvYImsJYBk1IxB93Fu8nWxt1r1
JEYXJqAhmK6p+w3pdwIDAQABo4IEwDCCBLwwHwYDVR0jBBgwFoAUHAWTsX+oNDCM
UuCWQKByoxBd4P8wDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMC
BggrBgEFBQcDATAdBgNVHQ4EFgQUhL6fReubQgcukj0+QgNrLXLJlxowUwYDVR0g
BEwwSjBIBgZngQwBAgIwPjA8BggrBgEFBQcCARYwaHR0cDovL2RvY3Muc2VydmVy
aWQudGVsZXNlYy5kZS9jcHMvc2VydmVyaWQuaHRtMF4GA1UdHwRXMFUwU6BRoE+G
TWh0dHA6Ly9jcmwuc2VydmVyaWQudGVsZXNlYy5kZS9ybC9UZWxla29tX1NlY3Vy
aXR5X1NlcnZlcklEX09WX0NsYXNzXzJfQ0EuY3JsMIGfBggrBgEFBQcBAQSBkjCB
jzAxBggrBgEFBQcwAYYlaHR0cDovL29jc3Auc2VydmVyaWQudGVsZXNlYy5kZS9v
Y3NwcjBaBggrBgEFBQcwAoZOaHR0cDovL2NydC5zZXJ2ZXJpZC50ZWxlc2VjLmRl
L2NydC9UZWxla29tX1NlY3VyaXR5X1NlcnZlcklEX09WX0NsYXNzXzJfQ0EuY3J0
MAwGA1UdEwEB/wQCMAAwcwYDVR0RBGwwaoIMbWFpbC5nbXgubmV0ggttYWlsLmdt
eC5kZYIMc210cC5nbXgubmV0ggtzbXRwLmdteC5kZYIMaW1hcC5nbXgubmV0ggtp
bWFwLmdteC5kZYILcG9wLmdteC5uZXSCCnBvcC5nbXguZGUwggJvBgorBgEEAdZ5
AgQCBIICXwSCAlsCWQB1AO7N0GTV2xrOxVy3nbTNE6Iyh0Z8vOzew1FIWUZxH7Wb
AAABhydpdqgAAAQDAEYwRAIgBJa364pZP6eUXPoSVx3fRNRA4CcCaQ+xmP+XKF98
MZYCIHiQ7v69gCR/Q28zEuAhmG6cuGuexSzuI0lDB4CqYnG1AHYAdv+IPwq2+5VR
wmHM9Ye6NLSkzbsp3GhCCp/mZ0xaOnQAAAGHJ2l2FwAABAMARzBFAiBqnlhkZOEM
XDlpiz9DYFvsfcHzlafpb1QKPSJblrdUEQIhAPMyzp9Ahrn9Of3nFuRbQQ/UbZvV
4bqyv2GdtQKj5E8hAHcAVYHUwhaQNgFK6gubVzxT8MDkOHhwJQgXL6OqHQcT0wwA
AAGHJ2l3QAAABAMASDBGAiEAzBNMMIk2q154Fb25P0hmZ12yjOGA6bpuDEVdAqUL
FiMCIQCZnzG8WjYzAfFeaabyQ63F2DTxuuTaLAOl1at7T04oVgB3AHPZnokbTJZ4
oCB9R53mssYc0FFecRkqjGuAEHrBd3K1AAABhydpd5QAAAQDAEgwRgIhAIiGkWUH
efUSk3DDARHTDLlIziwpB8n8PRYTvL+H3FkYAiEA8ZDSzsFRWHqHJnVmVVoKNTIU
E7QAuYNBtJR78yCoBBgAdgDatr9rP7W2Ip+bwrtca+hwkXFsu1GEhTS9pD0wSNf7
qwAAAYcnaXiQAAAEAwBHMEUCIQCd4IlF3ZJg+SF5nL34FLJVPvaTwItdTXmjPVzZ
2vLejgIgfvzPUs9sJXKET0/C7/hzDzTujLpEINAQmnR3YjeZ0qAwDQYJKoZIhvcN
AQELBQADggGBAIUQeYaIXJ5TjRN9gGswyc/xNvW7IY9Z/tr+vjHJH8DKYAM2IQWq
OnyNN4iMTGhKq2egsk3wfeP3LDQtyEulARbnmKqnf9Xwcmf7UkEHmAUSf79HQ2Ir
XOW8KSRxN90cNBLaqYMjpUthG9QooScefs8tYOD+nN0KO1LaRN9W8lXm1t89z5sK
YLsIHwq7jvsH8xHri9efZ2WxtQXCyUD54lp8IVQRCNZE+WRe8Uo56rvm2ReUA+Ko
AfIZp2W/S8xGrUMiEyHVD9huJs+f+zOgwrR9lvxMaYDeBKLDTy0+N20EQXDSXpng
4DczANjArE8DEoTi5Drsj48rNJiPyMs2sRuFPqLNHvpZJxp3AANhaLunpvS6jcOU
dnr5w9qo9oCqVgqRsi8SO42ltNOGJ+WkucmAA2gSULmE4j2UDBIGqeps+O/QisB+
SeQTGW2cs9o14XpPlwM2bHvM3gMHQdc+DL2bFIfsRcSRoh2GvHywSAb2Qp34DKf6
jZiBsuPawokJDw==
-----END CERTIFICATE-----
subject=C = DE, O = 1&1 Mail & Media GmbH, ST = Rheinland-Pfalz, L = Montabaur, CN = mail.gmx.net
issuer=C = DE, O = Deutsche Telekom Security GmbH, CN = Telekom Security ServerID OV Class 2 CA
---
No client certificate CA names sent
Peer signing digest: SHA256
Peer signature type: RSA-PSS
Server Temp Key: X25519, 253 bits
---
SSL handshake has read 4180 bytes and written 393 bytes
Verification error: unable to get local issuer certificate
---
New, TLSv1.3, Cipher is TLS_AES_256_GCM_SHA384
Server public key is 2048 bit
This TLS version forbids renegotiation.
Compression: NONE
Expansion: NONE
No ALPN negotiated
Early data was not sent
Verify return code: 20 (unable to get local issuer certificate)
---
+OK POP server ready H migmx009 1N5V96-1rLsfc1ogE-016u6z
pacman -Qikk ca-certificates
Name : ca-certificates-utils
Version : 20220905-1
Beschreibung : Common CA certificates (utilities)
Architektur : any
URL : https://src.fedoraproject.org/rpms/ca-certificates
Lizenzen : GPL
Gruppen : Nichts
Stellt bereit : ca-certificates ca-certificates-java
Hängt ab von : bash coreutils findutils p11-kit>=0.24.0
Optionale Abhängigkeiten : Nichts
Benötigt von : curl jdk-openjdk jre17-openjdk-headless neon python-certifi qca-qt5
Optional für : lib32-openssl openssl wget
In Konflikt mit : ca-certificates-java
Ersetzt : ca-certificates-java
Installationsgröße : 11,29 KiB
Packer : Jan Alexander Steffens (heftig) <heftig@archlinux.org>
Erstellt am : Mo 05 Sep 2022 23:59:24 CEST
Installiert am : Mo 07 Aug 2023 08:17:21 CEST
Installationsgrund : Installiert als Abhängigkeit eines anderen Pakets
Installations-Skript : Ja
Verifiziert durch : Signatur
Warnung: ca-certificates-utils: /etc/ca-certificates/README (Änderungszeitpunkte stimmen nicht überein)
Warnung: ca-certificates-utils: /etc/ca-certificates/extracted/README (Änderungszeitpunkte stimmen nicht überein)
Warnung: ca-certificates-utils: /etc/ca-certificates/trust-source/README (Änderungszeitpunkte stimmen nicht überein)
ca-certificates-utils: 33 Dateien gesamt, 3 veränderte Dateien