On Tue, Apr 07, 2026 at 04:27:39PM +0100, Jonathan Dowland wrote: > On Tue Apr 7, 2026 at 4:00 PM BST, Haines Brown wrote: > > My current host name is not iskra but Iskra. The host ikra is a > > different installation of the operating system on a different drive. > > Pehaps I need to boot it, purge and reinstall Exim from it. > > In the message above, I don't see an ikra, only iskra and Iskra. I'm not > sure that Exim will differentiate between hostnames that differ only in > capitalisation. Then again, maybe it will! > > It looks to me like your local exim believes @histomat.net is not handled > locally, and is trying to send mail for @histomat.net "off-site" (although > it may be connecting back to itself unwittingly). Should this system instead > be treating @histomat.net as local?
Sorry for the typo. It is iskar/Iskra. Never had a problem before witn different sets pf hostnames on different hardware. I suspect your supposition is correct: I may have sent a broken email from iskra and it was sent back to Iskra because the mail server knows me only at histomat.net I configured exim to hide outgoing email so that the visible domain name would be histomat.net without hostnames. Maybe just reconfiguring exim to not do that would solve the problem for the Iskra hose. -- Haines Brown

