From: Ace Suares (listssuares.an)
Date: Thu Dec 14 2006 - 08:19:34 CST

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On Thursday 14 December 2006 09:38, Wietse Venema wrote:
>
> Dropping TCP packets requires network-level tools. Postfix is
> application level.

I just confirmed the following:

1. telnet from mailinglist-server with mailinglistaddress: timeout on two
external servers
2. telnet from mailinglist-server with non-mailinglistaddress: accepted
3. telnet from non-mailinglist-server with mailinglistaddress: accepted
4. telnet from non-mailinglist-server with non-mailinglistaddress:
accepted

So, if you were to test the connection even with that mailinglistaddress,
you would see nothing strange.

Dang !

I am talking now with the sysadmins of one of those servers, who is
friendly, to see what happens at the other end of the conversation.

Ace

PS The mind boggles: based on email address (application level)
tcp-packets are dropped (network level) ??? There must be something wrong
here....

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