> Date: Tuesday, October 18, 2016 13:12:39 +0200 > From: Moi <anic...@mac.com> > > Thank you. It worked and I now have several log files to check. > > In the meantime, I've tried once again to send a message to > "mailtest" from an outside address; this time, I got an error reply: > > This report relates to a message you sent with the following header > fields: > > Message-id: <00e201d2290f$67da8c70$378fa550$@mac.com> > Date: Tue, 18 Oct 2016 09:15:21 +0200 > From: Moi > To: 'Mail Test' <mailt...@barbu.sytes.net> > Subject: Test > > Your message cannot be delivered to the following recipients: > > Recipient address: mailt...@barbu.sytes.net > Reason: Illegal host/domain name found > <end of reply> > > Yet another area with a problem; at least this is now a valid > reason for it to not work. > Is this a misconfiguration of my DNS server?
Assuming that "barbu.sytes.net" is the intended hostname (not something made up to obscure the real name), there is an MX-record for that that points to "mail.barbu.sytes.net", but there is no A-record for the "mail." hostname. There is an A-record for "mail.sytes.net", in case that is what you were intending, in which case you'd need to fix the MX on "barbu.sytes.net".
