SSL-Tools

SSL check results of arcor.de

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Discover if the mail servers for arcor.de 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, 27 Oct 2025 08:37:15 +0000

No connection to the mailservers of arcor.de could be established.

Servers

Incoming Mails

These servers are responsible for incoming mails to @arcor.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mx5.vodafonemail.de
2.207.217.30
Results incomplete
10
supported
not checked
DANE
errors
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s

Outgoing Mails

We have received emails from these servers with @arcor.de sender addresses. Test mail delivery

Host TLS Version & Cipher
smtpout2.vodafonemail.de (145.253.239.133)
TLSv1.3 TLS_AES_256_GCM_SHA384
vsmx012.vodafonemail.xion.oxcs.net (153.92.174.90)
TLSv1.2 AECDH-AES256-SHA
vsmx011.vodafonemail.xion.oxcs.net (153.92.174.89)
TLSv1.2 AECDH-AES256-SHA
mx009.vodafonemail.xion.oxcs.net (153.92.174.39)
TLSv1.2 AECDH-AES256-SHA
vsmx009.vodafonemail.xion.oxcs.net (153.92.174.87)
TLSv1.2 AECDH-AES256-SHA
mx2a.mailbox.org (80.241.60.219)
TLSv1.2 ECDHE-RSA-CHACHA20-POLY1305

Certificates

No Certificates found

DANE

DNS-based Authentication of Named Entities (DANE) is a protocol to allow X.509 certificates to be bound to DNS using TLSA records and DNSSEC.

Name Options DNSSEC Matches
_25._tcp.mx5.vodafonemail.de
  • DANE-EE: Domain Issued Certificate
  • Use full certificate
  • SHA-256 Hash
valid
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