Discover if the mail servers for isb.co.jp 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, 26 Oct 2020 05:23:57 +0000
These servers are responsible for incoming mails to @isb.co.jp addresses.
Hostname / IP address | Priority | STARTTLS | Certificates | Protocol | ||
---|---|---|---|---|---|---|
aspmx.l.google.com
2a00:1450:4013:c07::1a
|
10 |
supported
|
mx.google.com |
|
2 s
|
|
aspmx.l.google.com
108.177.126.26
|
10 |
supported
|
mx.google.com |
|
2 s
|
|
alt1.aspmx.l.google.com
2404:6800:4003:c05::1b
|
20 |
supported
|
mx.google.com |
|
16 s
|
|
alt1.aspmx.l.google.com
172.253.118.26
|
20 |
supported
|
mx.google.com |
|
17 s
|
|
alt2.aspmx.l.google.com
2404:6800:4008:c00::1a
|
20 |
supported
|
mx.google.com |
|
15 s
|
|
alt2.aspmx.l.google.com
108.177.97.26
|
20 |
supported
|
mx.google.com |
|
14 s
|
|
alt3.aspmx.l.google.com
2607:f8b0:400e:c04::1b
|
30 |
supported
|
mx.google.com |
|
7 s
|
|
alt3.aspmx.l.google.com
74.125.28.26
|
30 |
supported
|
mx.google.com |
|
7 s
|
|
alt4.aspmx.l.google.com
2607:f8b0:4023:c03::1b
|
30 |
supported
|
mx.google.com |
|
8 s
|
|
alt4.aspmx.l.google.com
74.125.137.26
|
30 |
supported
|
mx.google.com |
|
8 s
|
We have not received any emails from a @isb.co.jp address so far. Test mail delivery