[ALUG] Strange postfix problem

Chris Green cl at isbd.net
Thu Dec 7 12:26:29 GMT 2017

On Thu, Dec 07, 2017 at 12:14:13PM +0000, Laurie Brown wrote:
> On 07/12/17 11:59, Chris Green wrote:
> [SNIP]
> > How odd!  How is that client connecting to your system?  I.e. is it
> > via their ADSL then in to yours, or is your postfix server 'out there'
> > somwhere and thus not behind a NAT router?  Does the non-local IP make
> > any sense at either their end or your end?
> It's a straight connection via their ADSL to a server "out there" and
> not behind any kind of NAT that I know of, and the IP address is random
> and does not match that of her desktop. It only affects this one client.
My first suspicion would fall on her ADSL connection/router then, i.e.
the router's NAT is throwing a wobbly of some sort and putting a
private IP address out.

Is there any chance you can get her to use a different router?

> > Should we take this off list?
> Maybe, but not yet, I think.

Chris Green

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