SSL-Tools

SSL check results of cromos.com.br

NEW You can also bulk check multiple servers.

Discover if the mail servers for cromos.com.br 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 Tue, 04 May 2021 13:39:42 +0000

We can not guarantee a secure connection to the mailservers of cromos.com.br!

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

/mailservers/cromos.com.br

Servers

Incoming Mails

These servers are responsible for incoming mails to @cromos.com.br addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mx.cromos.com.br
200.255.140.3
 5
supported
RJOMATDC01
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
supported
  • SSL_RSA_WITH_RC4_128_SHA
  • TLSv1.0
  • SSLv3
7 s
mail.cromos.com.br
200.255.140.5
 10
supported
RJOMATDC01
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
supported
  • SSL_RSA_WITH_RC4_128_SHA
  • TLSv1.0
  • SSLv3
7 s
mail02.cromos.com.br
186.200.14.27
Results incomplete
20 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
4 s

Outgoing Mails

We have not received any emails from a @cromos.com.br address so far. Test mail delivery

Certificates

First seen at:

CN=RJOMATDC01

Certificate chain
  • RJOMATDC01
    • remaining
    • 2048 bit
    • sha1WithRSAEncryption
    • Hostname Mismatch
    • Expired
    • Unknown Authority
      corp-RJOMATDC01-CA
Subject
Common Name (CN)
  • RJOMATDC01
Alternative Names
  • RJOMATDC01
  • rjomatdc01.corp.cromos.pvt
  • mail
  • mail.cromos.com.br
  • mail02
  • mail02.cromos.com.br
  • autodiscover
  • autodiscover.corp.cromos.pvt
  • autodiscover.cromos.com.br
Issuer
Domain Component (DC)
  • pvt
  • cromos
  • corp
Common Name (CN)
  • corp-RJOMATDC01-CA
validity period
Not valid before
2017-08-28
Not valid after
2019-08-28
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
Fingerprints
SHA256
1E:AC:81:08:25:50:B9:05:AC:A1:7F:B1:9E:66:82:26:D6:2D:98:B6:F3:13:3F:4B:0A:F1:88:0F:29:EA:17:EF
SHA1
04:7C:BB:8D:37:92:B6:CB:31:56:A5:CF:47:14:B5:E7:D4:D2:B7:E4
X509v3 extensions
subjectKeyIdentifier
  • 08:90:F2:4C:B2:B9:1E:23:E8:51:A5:19:F1:31:87:60:26:A6:18:4F
authorityKeyIdentifier
  • keyid:2D:A9:15:DE:2A:06:05:19:14:70:63:1E:49:53:F5:B7:69:43:D3:25
crlDistributionPoints
  • Full Name:
  • URI:ldap:///CN=corp-RJOMATDC01-CA,CN=RJOMATDC01,CN=CDP,CN=Public%20Key%20Services,CN=Services,CN=Configuration,DC=corp,DC=cromos,DC=pvt?certificateRevocationList?base?objectClass=cRLDistributionPoint
  • URI:http://rjomatdc01.corp.cromos.pvt/CertEnroll/corp-RJOMATDC01-CA.crl
authorityInfoAccess
  • CA Issuers - URI:ldap:///CN=corp-RJOMATDC01-CA,CN=AIA,CN=Public%20Key%20Services,CN=Services,CN=Configuration,DC=corp,DC=cromos,DC=pvt?cACertificate?base?objectClass=certificationAuthority
  • CA Issuers - URI:http://rjomatdc01.corp.cromos.pvt/CertEnroll/RJOMATDC01.corp.cromos.pvt_corp-RJOMATDC01-CA.crt
1_3_6_1_4_1_311_20_2
  • ...W.e.b.S.e.r.v.e.r