[OT] a trouble with posting to '*.@tycho.nsa.gov'

[KaiGai Kohei <kaigai@kaigai.gr.jp>]

Hi,

In recent days, I have faced to a trouble when I tried to post
messages into '*@tycho.nsa.gov'.
The phenomenon was that any messages were not delivered when we
used some specific SMTP servers. Today, I heard that Y.Nakamura
is also faced to same trouble when he tried to post a message
into NSA SELinux list from his office.

After I changed my SMTP server from mail.kaigai.gr.jp to smtp.gmail.com,
some messages are delivered without any troubles.
(Therefore, I could post a small patch some days ago.)

But it was so inconvenient. Especially, we also cannot post a message
from my office. :(
The following smtp servers were NOT available at least.
- mail.kaigai.gr.jp
- tyo201.gate.nec.co.jp

Is there any spam filtering configuration by smtp server?
Or, are any other reason possible?

Thanks,
-- 
KaiGai Kohei <kaigai@kaigai.gr.jp>

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