Discover if the mail servers for posteo.fi 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, 18 Sep 2023 10:57:43 +0000
These servers are responsible for incoming mails to @posteo.fi addresses.
Hostname / IP address | Priority | STARTTLS | Certificates | Protocol | ||
---|---|---|---|---|---|---|
mx03.posteo.de
185.67.36.70
|
10 |
supported
|
mx01.posteo.de |
|
7 s
|
|
mx03.posteo.de
185.67.36.63
|
10 |
supported
|
mx01.posteo.de |
|
7 s
|
|
mx04.posteo.de
185.67.36.64
|
10 |
supported
|
mx01.posteo.de |
|
7 s
|
|
mx04.posteo.de
185.67.36.71
Results incomplete
|
10 |
supported
|
mx04.posteo.de |
|
6 s
|
|
mx01.posteo.de
185.67.36.61
|
10 |
supported
|
mx01.posteo.de |
|
7 s
|
|
mx01.posteo.de
185.67.36.62
|
10 |
supported
|
mx01.posteo.de |
|
7 s
|
We have not received any emails from a @posteo.fi address so far. Test mail delivery
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.mx03.posteo.de |
|
valid
|
— |
_25._tcp.mx03.posteo.de |
|
valid
|
valid
|
_25._tcp.mx03.posteo.de |
|
valid
|
— |
_25._tcp.mx04.posteo.de |
|
valid
|
valid
|
_25._tcp.mx04.posteo.de |
|
valid
|
— |
_25._tcp.mx04.posteo.de |
|
valid
|
— |
_25._tcp.mx04.posteo.de |
|
valid
|
— |
_25._tcp.mx01.posteo.de |
|
valid
|
— |
_25._tcp.mx01.posteo.de |
|
valid
|
valid
|
_25._tcp.mx01.posteo.de |
|
valid
|
— |