One of our customers, who is a reviewer with a magazine, has the following email-account with this magazine:
[EMAIL PROTECTED], however she uses her company-address as from-address: [EMAIL PROTECTED] Now she sends me an email from the account she has with the magazine: From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] This mail arrives in my mailbox with: From: [EMAIL PROTECTED] on behalf of [EMAIL PROTECTED] The mail-headers contain: From: [EMAIL PROTECTED] Sender: [EMAIL PROTECTED] Return-Path: [EMAIL PROTECTED] But, in the Postfix logfile I see: [EMAIL PROTECTED] This gives problems with SPF: mail from "@mycomp.nl" which does not come from an email-server of "mycomp.nl", so it will be blocked. Doing something analogous from gmail, works allright: in that case the from-address in the Postfix-logfile is the gmail-address, not the mycompany-address (also the Return-Path header has the gmail-address). So, what determines the from-address Postfix will use? regards, Kees.