SSL-Tools

SSL check results of mailcow.rgngedgltwgliqeb.myfritz.net

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Discover if the mail servers for mailcow.rgngedgltwgliqeb.myfritz.net can be reached through a secure connection.

To establish a secure connection a mail server has to offer STARTTLS (SSL), a trustworthy SSL certificate, support for the Diffie-Hellman-Algorithm to guarantee Perfect Forward Secrecy and must not be vulnerable against the Heartbleed attack. Futhermore we recommend using end-to-end encryption with GnuPG.

Summary

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Report created Fri, 01 Mar 2024 14:52:12 +0000

We can not guarantee a secure connection to the mailservers of mailcow.rgngedgltwgliqeb.myfritz.net!

Please contact the operator of mailcow.rgngedgltwgliqeb.myfritz.net and ask him or her to solve this problem. This result stays accessible under the following address:

/mailservers/mailcow.rgngedgltwgliqeb.myfritz.net

Servers

Incoming Mails

These servers are responsible for incoming mails to @mailcow.rgngedgltwgliqeb.myfritz.net addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mailcow.rgngedgltwgliqeb.myfritz.net
149.233.196.36
 -
supported
mailcow.fritz.box
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
6 s
mailcow.rgngedgltwgliqeb.myfritz.net
2a04:4540:8c00:c900:7818:e5ff:fee7:3123
Results incomplete
- not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s

Outgoing Mails

We have not received any emails from a @mailcow.rgngedgltwgliqeb.myfritz.net address so far. Test mail delivery

Certificates

First seen at:

CN=mailcow.fritz.box,OU=mailcow,O=mailcow,L=Willich,ST=NRW,C=DE

Certificate chain
  • mailcow.fritz.box (Certificate is self-signed.)
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
    • Hostname Mismatch
    • Unknown Authority
Subject
Country (C)
  • DE
State (ST)
  • NRW
Locality (L)
  • Willich
Organization (O)
  • mailcow
Organizational Unit (OU)
  • mailcow
Common Name (CN)
  • mailcow.fritz.box
Issuer

Certificate is self-signed.

validity period
Not valid before
2023-09-28
Not valid after
2024-09-27
Fingerprints
SHA256
44:93:60:D8:42:8E:7D:33:C5:87:DB:87:BF:89:A0:33:8A:36:9D:C2:1E:C2:B1:47:AA:0F:85:A2:12:99:61:08
SHA1
E3:F8:AF:3F:61:31:3D:D2:AB:35:5D:49:70:F4:4C:36:8C:3F:EB:B7
X509v3 extensions
subjectKeyIdentifier
  • 46:00:F1:68:E7:9B:A8:94:C7:EA:39:99:4D:A0:B8:1C:45:27:61:DD
authorityKeyIdentifier
  • keyid:46:00:F1:68:E7:9B:A8:94:C7:EA:39:99:4D:A0:B8:1C:45:27:61:DD