On Thu, Jan 14, 2016 at 11:13:34PM +0100, Manuel Bilderbeek wrote: > I have no idea what to investigate and how.
Check whether you have ::1 and/or 127.0.0.1 on lo. Stop exim. Use netstat to see who is listening on port 25. Check whether this is a legitimate process. For basic Unix administration skills, you might want to refer to the relevant -user mailing lists. Greetings Marc -- ----------------------------------------------------------------------------- Marc Haber | "I don't trust Computers. They | Mailadresse im Header Leimen, Germany | lose things." Winona Ryder | Fon: *49 6224 1600402 Nordisch by Nature | How to make an American Quilt | Fax: *49 6224 1600421