For several years email was running very good on our DA servers. Now after a spam attack we replaced the server with a nice fresh install and Debian 64bit.
after the spam attack we got some remote_smtp (-53) errors. we cleaned the exim DB folder and they where gone.
But in the next phase we are getting the next error.
2012-11-19 11:08:24 Remote host mailin.kpnmail.nl [126.96.36.199] closed connection in response to HELO svr1.MyServer.nl
2012-11-19 11:08:24 ****@kpnmail.nl R=lookuphost T=remote_smtp defer (-18): Remote host mailin.kpnmail.nl [188.8.131.52] closed connection in response to HELO svr1.MyServer.nl
Everything is correctly configured (dns report and so on all fine) We can send email to all other email providers just this one is bugging. Also this is one of the larger once in Holland so we really need it to work for our dutch customers.
thnk in advanced
Ewart ten Brink