Am 16.04.2014 19:07, schrieb sedandgrep: > Upon inspection of the headers to an external domain (an email address I have > at gmail), they show the SPF failing claiming that the ip of the client is > not designated to send emails for our domain (the domain of our postfix of > course)
you need to adjust your SPF record to the IP the destination MX is facing as connecting one, whatever proxy, NAT or not you have on your side don't matter at all SPF woks on the physical connecting IP
