Hi, Greeting all you exim-monks of wisdom.
I am very new to the list and would like beg some of your infinite wisdom. I have been using exim now for the past year and it worked well. Then I switched my ISP. Now the pppoe connection is no longer directly on the server. Past: MyBox <---pppoe--> ISP1's smtp Present: MyBox <---lan---> ADSL Router <---pppoe---> ISP2's smtp Receiving mail no problem, but when I send mail I get the following response: "SMTP error from remote mail server after end of data: host smtp.isdsl.net [196.26.208.199]: 550 A valid sender header is required in message ([email protected])" I googled that response and could only find something referencing callout verification, but suspect it would only matter to verify the recipients domain. I might be totally wrong there. My problem is: "Is this at my mail server where I need to make an adjustment (callout verification or similar.) or do you think that I have a port forwarding problem on my adsl router?" Should I maybe switch off the firewall on the router, my box has an iptables firewall that works well. If its my exim where would you suggest I start to look? Any suggestions? Regards, Louis -- ## List details at https://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
