[kwlug-disc] Testing a mail port

[Khalid Baheyeldin]

To clarify ...

You are trying to contact port 25 on mail.ufn.com, but that host is
not the MX server, and therefore does not respond (perhaps no SMTP
server running there, hence my initial netstat message to verify).

If that server has no SMTP, it is because Google is their SMTP server.

So, you should tell the client to configure Google for SMTP on their clients.

On Wed, Mar 9, 2016 at 10:32 AM, Khalid Baheyeldin <kb at 2bits.com> wrote:
> Here is another thing.
>
> Assuming that ufn.com is your real client, then DNS says that their MX
> is Google Apps.
>
> $ dig mx ufn.com
>
> ;; ANSWER SECTION:
> ufn.com.                299     IN      MX      1 aspmx.l.google.com.
> ufn.com.                299     IN      MX      10 aspmx2.googlemail.com.
> ufn.com.                299     IN      MX      10 aspmx3.googlemail.com.
> ufn.com.                299     IN      MX      5 alt1.aspmx.l.google.com.
> ufn.com.                299     IN      MX      5 alt2.aspmx.l.google.com.
>
> No wonder then ...
> --
> Khalid M. Baheyeldin
> 2bits.com, Inc.
> Fast Reliable Drupal
> Drupal optimization, development, customization and consulting.
> Simplicity is prerequisite for reliability. --  Edsger W.Dijkstra
> Simplicity is the ultimate sophistication. --   Leonardo da Vinci
> For every complex problem, there is an answer that is clear, simple,
> and wrong." -- H.L. Mencken



-- 
Khalid M. Baheyeldin
2bits.com, Inc.
Fast Reliable Drupal
Drupal optimization, development, customization and consulting.
Simplicity is prerequisite for reliability. --  Edsger W.Dijkstra
Simplicity is the ultimate sophistication. --   Leonardo da Vinci
For every complex problem, there is an answer that is clear, simple,
and wrong." -- H.L. Mencken