Discover if the mail servers for schupp.io 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 Mon, 13 Nov 2023 01:58:58 +0000
These servers are responsible for incoming mails to @schupp.io addresses.
Hostname / IP address | Priority | STARTTLS | Certificates | Protocol | ||
---|---|---|---|---|---|---|
mx1.schupp.io
2a01:4f8:241:797:178:63:7:216
|
5 |
supported
|
*.schupp.io |
|
6 s
|
|
mx1.schupp.io
178.63.7.216
|
5 |
supported
|
*.schupp.io |
|
4 s
|
|
mx3-prod-de-nbg1.schupp.io
2a01:4f8:c2c:c041::1:3
|
30 |
supported
|
*.schupp.io |
|
7 s
|
|
mx3-prod-de-nbg1.schupp.io
116.203.135.109
|
30 |
supported
|
*.schupp.io |
|
5 s
|
We have received emails from these servers with @schupp.io sender addresses. Test mail delivery
Host | TLS Version & Cipher | |
---|---|---|
mx1-prod-de-fsn1-pve1.schupp.io (138.201.23.160) |
TLSv1.3
TLS_AES_256_GCM_SHA384
|
|
relay1.schupp.io (24.134.220.249) |
TLSv1.3
TLS_AES_256_GCM_SHA384
|
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.mx1.schupp.io |
|
valid
|
valid
|
_25._tcp.mx3-prod-de-nbg1.schupp.io |
|
valid
|
valid
|