OpenVPN on OpenVZ with Ubuntu 16.04

[Ken D'Ambrosio]

On 2018-07-30 04:33, Helmut Schneider wrote:

> helmut at h2786452:~$ telnet exchange01 25
> Trying 192.168.124.249...
> Connected to exchange01
> Escape character is '^]'.
> 220 exchange01 Microsoft ESMTP MAIL Service ready at Mon, 30 Jul 2018
> 10:08:21 +0200

Thanks much for the info!  That helps a lot.  I do find the telnet
"working" to be very interesting.  I suggest going through an entire
transaction via telnet, to see what happens.  (Replace, of course, the
info below with appropriate info; green text is server-side response.)

telnet exchange01 25 
Trying 192.168.124.249...
Connected to exchange01
Escape character is '^]'.
220 exchange01 Microsoft ESMTP MAIL Service ready at Mon, 30 Jul 2018
helo sendingdomain.com 
250 exchange01
mail from: <youremailaddress at sendingdomain.com> 
250 2.1.0 Ok
rcpt to: <recipientemailaddress at receivingdomain.com> 
250 2.1.5 Ok 
data 
354 End data with <CR><LF>.<CR><LF> 
Subject: This is a test

Some data here.
. <CR> 
250 2.0.0 Ok: queued as EB7048D95 

Now, of course, not everything above will be the same as with your
transaction, but I'm betting something goes off the rails in a very
different manner, and I'd be quite interested in seeing that
transaction. 

-Ken
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