Sendmail on a LAN

JD jd1008 at
Tue Aug 17 23:50:29 UTC 2010

  On 08/17/2010 04:35 PM, Gordon Messmer wrote:
> On 08/17/2010 02:28 PM, JD wrote:
>> So, why would any mail client/server send an email message
>> to my ip address on a port other than 25?
> They never would.
>> Seems that I would need to configure the dydns account to
>> forward the email to me on that alternate port, no?
> Yes.  I merely meant that if you configured the firewall to direct port
> 8025 to your sendmail server's port 25, you wouldn't have to take the
> step of reconfiguring sendmail.  You'd only need to set up an external
> MX at DynDNS, configure your dns MX record to point to their servers,
> and configure your router to forward the appropriate port.  No small
> configuration, but one that doesn't modify sendmail.
> On the other hand, if your ATT firewall's configuration is simply to
> forward all ports, then you *would* have to modify sendmail.  I normally
> don't do that.  I forward only specific ports, and most firewall will
> allow you to set the destination port to something other than the original.
This router does not provide for a port to forward to.
It only provides for forwarding a port or range of ports
to a lan ip address.
As I said, it is a crappy router.

More information about the users mailing list