> Am 11.02.2015 um 17:35 schrieb Mohammad Isargar <[email protected]>: > > Hi there, > > We have a situation where Postfix installed with a single domain, serving a > subnet of local LAN users and SASL authentication enforced in order to send > emails. > > Even though that we know that the actual sender can be found by checking full > email headers, but one of our security requirements is that the "local" > senders should not be able to use an arbitrary From: header to send emails, > and the value of this header must be the same as MAIL FROM (or envelope) > address. > > Is any solution around this with Postfix?
https://github.com/croessner/vrfydmn That’s probably what you want ;-) It can replace From: with Envelope-From or reject the From:-header Christian -- Bachelor of Science Informatik Erlenwiese 14, 36304 Alsfeld T: +49 6631 78823400, F: +49 6631 78823409, M: +49 171 9905345 USt-IdNr.: DE225643613, http://www.roessner-network-solutions.com
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