Re: Finding a replacement for my ISP's smtp server
On Mon 28 Jul 2014 at 14:02:29 +0200, Slavko wrote:
> Dňa Sun, 27 Jul 2014 13:02:18 +0100 Brian <ad44@cityscape.co.uk>
> napísal:
>
> > He could check with nc.
> >
> > brian@desktop:~$ nc smtp.gmail.com 25
> > 220 mx.google.com ESMTP 19sm41008233wjz.3 - gsmtp
> >
>
> AFAIK, the port 25 have to used only for (inter-) servers connections,
> the clients have connect via 587, the port 25 for client connections is
> for backward compatibility only.
How does the server tell the difference between talking to another
server (which is acting as client) and what you call a "client"?
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