I've struggled off and on for months to get outbound mail via exim4 through frontier.com with no joy. I'm on a single user system using mutt and exim4 plus fetchmail. Inbound is no problem. Outbound I see this in /var/log/exim4/mainlog: 554 5.7.1 <>: Sender address rejected: Access denied /etc/email-addresses has the proper frontier email address in it. >From web search I created /etc/exim4/conf.d/rewrite/10_from_rewrite containing >this line: * "$header_from:" F This supposedly tells exim4 to set the Envelope header the same as the From header. I think Sent = Envelope headers, admittedly not sure about that.
If there is anyone on the list who has exim4 talking to Frontier.com please help. Thanks, Mike