> Very well. If adding the IP address to mynetworks provides sufficient
> security against abuse of my server, I will leave it to that.
TCP and therefore SMTP is a bidirectional protocol (SYN-ACK and such).
If you really estimate an attacker between you and the remote end, you
will need *verified
On Mon, Apr 22, 2013 at 03:01:04PM +0200, L.W. van Braam van Vloten wrote:
> > While it's easy enough to spoof single IP packets, it's far more
> > difficult to spoof a whole SMTP conversation.
>
> Very well. If adding the IP address to mynetworks provides sufficient
> security against abuse of my
Hi,
While it's easy enough to spoof single IP packets, it's far more
difficult to spoof a whole SMTP conversation.
Very well. If adding the IP address to mynetworks provides sufficient
security against abuse of my server, I will leave it to that.
Thanks for the advice.
Lucas
[please don't top-post. thanks.]
On 4/18/2013 11:09 AM, Lucas van Braam van Vloten wrote:
> Hi,
> Thanks for your replies. I know how to allow relay by its IP address
> but I'm just afraid that it would be easy to fake an up address and
> use my server as a spam relay.
While it's easy enough to
Hi,
Thanks for your replies. I know how to allow relay by its IP address but I'm
just afraid that it would be easy to fake an up address and use my server as a
spam relay. I would prefer to combine this with some form of authentication.
Would you happen to know a good manual for setting up SASL
On Thu, Apr 18, 2013 at 04:31:41PM +0200, L.W. van Braam van Vloten wrote:
> Could you please advise what would be the preferred, secure approach to
> achieve this?
When you say "secure", what security mechanisms are acceptable? You
could operate a TLS protected submission service that the other
* L.W. van Braam van Vloten :
> Hello list,
>
> I would like to to use my postfix implementation to relay mail from one
> specific host on the internet, to any address on the internet. The idea is
> that the external host will send name in my name, i.e. it will appear to
> come from my domain.
>
Hello list,
I would like to to use my postfix implementation to relay mail from one
specific host on the internet, to any address on the internet. The idea is
that the external host will send name in my name, i.e. it will appear to
come from my domain.
I can allow the specific IP address to us
