SSL-Tools

SSL check results of cacsa.avianet.cu

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Discover if the mail servers for cacsa.avianet.cu 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 Mon, 14 Apr 2025 15:28:18 +0000

We can not guarantee a secure connection to the mailservers of cacsa.avianet.cu!

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

/mailservers/cacsa.avianet.cu

Servers

Incoming Mails

These servers are responsible for incoming mails to @cacsa.avianet.cu addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mx1.avianet.cu
200.55.163.162
 0
supported
mx1.avianet.cu
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
9 s
mx3.avianet.cu
200.55.163.169
 1
supported
mx3.avianet.cu
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
23 s
mx2.avianet.cu
200.55.164.146
Results incomplete
100 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
mx4.avianet.cu
200.55.164.155
 101
supported
mx4.avianet.cu
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
19 s

Outgoing Mails

We have received emails from these servers with @cacsa.avianet.cu sender addresses. Test mail delivery

Host TLS Version & Cipher
mx1.avianet.cu (200.55.163.162)
TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384

Certificates

First seen at:

CN=mx4.avianet.cu,OU=UEB-SI,O=SERVAC,L=PLAZA,ST=LA HABANA,C=CU

Certificate chain
  • mx4.avianet.cu (Certificate is self-signed.)
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
    • Expired
    • Unknown Authority
Subject
Country (C)
  • CU
State (ST)
  • LA HABANA
Locality (L)
  • PLAZA
Organization (O)
  • SERVAC
Organizational Unit (OU)
  • UEB-SI
Common Name (CN)
  • mx4.avianet.cu
Issuer

Certificate is self-signed.

validity period
Not valid before
2020-09-04
Not valid after
2022-09-04
Fingerprints
SHA256
ED:93:33:6E:1B:4D:17:0D:CF:7D:C6:F2:11:11:AF:48:E5:17:1C:8E:F2:6C:7D:2E:E3:A9:98:5E:77:3E:D9:6F
SHA1
BD:D0:D0:D7:EB:4D:3C:A8:1C:BD:1E:63:DD:B9:17:21:28:CB:B5:6E
X509v3 extensions
subjectKeyIdentifier
  • EB:F1:DE:63:F9:1F:5D:10:5F:8F:51:77:8D:D3:A1:DC:32:D0:41:5F
authorityKeyIdentifier
  • keyid:EB:F1:DE:63:F9:1F:5D:10:5F:8F:51:77:8D:D3:A1:DC:32:D0:41:5F
First seen at:

CN=mx3.avianet.cu,OU=UEB-SI,O=SERVAC,L=Plaza,ST=La Habana,C=CU

Certificate chain
  • mx3.avianet.cu (Certificate is self-signed.)
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
    • Unknown Authority
Subject
Country (C)
  • CU
State (ST)
  • La Habana
Locality (L)
  • Plaza
Organization (O)
  • SERVAC
Organizational Unit (OU)
  • UEB-SI
Common Name (CN)
  • mx3.avianet.cu
Issuer

Certificate is self-signed.

validity period
Not valid before
2024-11-21
Not valid after
2026-11-21
This certifcate has been verified for the following usages:
  • Digital Signature
  • Non Repudiation
  • Key Encipherment
Fingerprints
SHA256
70:D0:7A:35:0F:ED:60:63:7A:FE:02:BB:86:99:E5:64:C2:BB:7D:2D:52:CB:E5:33:E9:51:3F:52:E7:48:A6:AD
SHA1
E2:69:52:29:A9:06:38:DE:01:AA:77:0E:34:4A:BF:0E:9D:0A:68:79
X509v3 extensions
subjectKeyIdentifier
  • 8C:70:EE:0F:3F:5F:A4:34:82:DE:9C:07:3D:BC:D2:7F:A4:11:2A:0A
First seen at:

CN=mx1.avianet.cu,OU=UEB-SI,O=SERVAC,L=Plaza,ST=La Habana,C=CU

Certificate chain
  • mx1.avianet.cu (Certificate is self-signed.)
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
    • Unknown Authority
Subject
Country (C)
  • CU
State (ST)
  • La Habana
Locality (L)
  • Plaza
Organization (O)
  • SERVAC
Organizational Unit (OU)
  • UEB-SI
Common Name (CN)
  • mx1.avianet.cu
Issuer

Certificate is self-signed.

validity period
Not valid before
2024-11-21
Not valid after
2026-11-21
This certifcate has been verified for the following usages:
  • Digital Signature
  • Non Repudiation
  • Key Encipherment
Fingerprints
SHA256
9A:4F:12:42:CB:9D:45:7C:23:85:CD:1A:1C:17:81:C6:DB:9E:42:4A:B8:7F:3E:76:FC:65:E6:6F:A1:F7:78:83
SHA1
34:53:5B:12:78:96:CA:50:18:67:0D:4F:EA:96:B2:68:F5:F0:F3:80
X509v3 extensions
subjectKeyIdentifier
  • 3B:3C:BE:4E:39:F9:CA:49:ED:98:D7:34:9D:0F:06:2B:85:48:5B:02