Discover if the mail servers for lrz.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.
Report created Thu, 07 Sep 2023 07:11:45 +0000
These servers are responsible for incoming mails to @lrz.de addresses.
Hostname / IP address | Priority | STARTTLS | Certificates | Protocol | ||
---|---|---|---|---|---|---|
postrelay1.lrz.de
2001:4ca0::103:0:25:1:1
Results incomplete
|
100 |
supported
|
not checked |
|
6 s
|
|
postrelay1.lrz.de
2001:4ca0:0:103::81bb:ffa0
Results incomplete
|
100 |
supported
|
not checked |
|
6 s
|
|
postrelay1.lrz.de
129.187.254.158
Results incomplete
|
100 |
supported
|
not checked |
|
6 s
|
|
postrelay1.lrz.de
129.187.255.160
Results incomplete
|
100 |
supported
|
not checked |
|
6 s
|
|
postrelay2.lrz.de
2001:4ca0:0:103::81bb:ffa1
Results incomplete
|
100 |
supported
|
not checked |
|
6 s
|
|
postrelay2.lrz.de
2001:4ca0::103:0:25:1:2
Results incomplete
|
100 |
supported
|
not checked |
|
6 s
|
|
postrelay2.lrz.de
129.187.255.161
Results incomplete
|
100 |
supported
|
not checked |
|
6 s
|
|
postrelay2.lrz.de
129.187.254.159
Results incomplete
|
100 |
supported
|
not checked |
|
6 s
|
We have not received any emails from a @lrz.de address so far. Test mail delivery
No Certificates found
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.postrelay1.lrz.de |
|
valid
|
— |
_25._tcp.postrelay2.lrz.de |
|
valid
|
— |