SSL check results of deltaonline.sk

NEW You can also bulk check multiple servers.

Discover if the mail servers for deltaonline.sk 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

Report created Thu, 28 May 2020 00:32:29 +0000

We can not guarantee a secure connection to the mailservers of deltaonline.sk!

Please contact the operator of deltaonline.sk and ask him or her to solve this problem. This result stays accessible under the following address:

/mailservers/deltaonline.sk

Servers

Incoming Mails

These servers are responsible for incoming mails to @deltaonline.sk addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mailgw.dol.sk
2a0c:2541:249:200::25
5
supported
*.dol.sk
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
12 s
mailgw.dol.sk
2a0c:2541:249:200::26
5
supported
*.dol.sk
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
11 s
mailgw.dol.sk
85.159.106.25
5
supported
*.dol.sk
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
11 s
mailgw.dol.sk
85.159.106.26
5
supported
*.dol.sk
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
11 s
mail.deltaonline.sk
2a0c:2541:249:200::3
Results incomplete
10
unsupported
not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
mail.deltaonline.sk
85.159.106.3
Results incomplete
10
unsupported
not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
vhost1.dol.sk
2a0c:2541:249:201::132
Results incomplete
50
unsupported
not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
1 s
vhost1.dol.sk
85.159.104.132
Results incomplete
50
unsupported
not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
1 s

Outgoing Mails

We have not received any emails from a @deltaonline.sk address so far. Test mail delivery

Certificates

First seen at:

CN=*.dol.sk,O=dol.sk,OU=Proxmox Mail Gateway

Certificate chain
  • *.dol.sk (Certificate is self-signed.)
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
    • Unknown Authority

Subject
Organizational Unit (OU)
  • Proxmox Mail Gateway
Organization (O)
  • dol.sk
Common Name (CN)
  • *.dol.sk
Issuer

Certificate is self-signed.

validity period
Not valid before
2019-05-03
Not valid after
2029-04-30
Fingerprints
SHA256
17:5D:18:2A:C7:12:38:2D:94:93:B8:C2:11:67:FA:54:1A:36:0F:8A:FD:C1:79:77:82:9C:15:0D:18:66:E3:F3
SHA1
98:33:D6:05:5D:63:93:33:D7:C9:62:4A:70:43:A8:13:0B:12:7B:C8
First seen at:

CN=*.dol.sk,O=dol.sk,OU=Proxmox Mail Gateway

Certificate chain
  • *.dol.sk (Certificate is self-signed.)
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
    • Unknown Authority

Subject
Organizational Unit (OU)
  • Proxmox Mail Gateway
Organization (O)
  • dol.sk
Common Name (CN)
  • *.dol.sk
Issuer

Certificate is self-signed.

validity period
Not valid before
2019-05-22
Not valid after
2029-05-19
Fingerprints
SHA256
75:14:38:81:4B:B8:BD:14:4E:BF:27:EF:AB:06:FD:E8:B6:61:C6:57:57:4B:F0:24:97:8C:99:56:11:D4:F5:FF
SHA1
11:B7:00:DC:E1:4F:AF:D9:38:F8:D3:CE:E4:09:05:AF:3E:16:AD:F0