On Mon, Mar 30, 2020 at 07:24:48PM -0400, Thomas Dickey wrote: > On Mon, Mar 30, 2020 at 10:26:26AM +0200, Raphael Hertzog wrote: > ... > > A message that you sent could not be delivered to one or more of its > > recipients. This is a permanent error. The following address(es) failed: > > > > tom@localhost > > I see (am investigating a fix). ...made a fix, and (for instance this report) am checking if there are other scenarios. The root cause for the problem that I can see in the logs is that exim4's not using DNS to get domain names, just assuming that _any_ hostname is a FQDN. (fwiw, the relevant manpage uses hostname and domainname interchangeably). -- Thomas E. Dickey <dickey@invisible-island.net> https://invisible-island.net ftp://ftp.invisible-island.net
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