Can you?!
This is how other servers/mail clients connect to your SMTP server
anyway.
What you could do if you have firewall (or not) is to have your ISP be
MX for your domain and then forward (statically) mail to your SMTP
server. This way you only get connections to your SMTP host from single
machine. Thus limit access to your SMTP from that machine only.
Hope it helps.
Regards,
Iztok
> -----Original Message-----
> From: John Hardly [mailto:[EMAIL PROTECTED]]
> Sent: Monday, January 15, 2001 1:03 PM
> Cc: [EMAIL PROTECTED]
> Subject: [FW1] How to block "telnet mail.Mydomain.com 25 "
>
>
>
> Hi all,
> I'd like to know if anyone has an idea on how to block someone from
> iniating commands to my sendmail thru "telnet mail.MyDomain.com 25".
> Please consider both of the cases : the Mail server is behind a
> firewall or Not.
> Tanks.
>
> --
> John Hardly
> E-mail : john (at) iav (dot) ac (dot) ma
>
>
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