remote_smtp (-18) closed connection in respnse to HELO

[schoonmoeder]

Hello,

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 [213.75.3.30] 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 [213.75.3.30] 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

 

[nobaloney]

You need to ask them why they're not allowing you to send them email.

Anything else is a guess.

Jeff

 

[schoonmoeder]

We tried some more tests and one came up with a possibility.

if we telnet to there mail server.
and i do srv1.mydomain.nl we get a IP ending on 168.
Our whole server also the mail server is configured to run on 138.
The server has 4 IP's and it looks like these guys just take the last ip.

In Exim we configured 138. is there other places we might need to change it?
I'm now changing the DNS towards 168 so maybe that makes a difference

 

[schoonmoeder]

Issue solved. change IP to 168 and now email got sended again. (i did change the reverse DNS and svr1 IP to 169 in the DNS)

issue tracking:
telnet mail.reciever.nl 25
HELO srv1.mymailserver.nl

This wil return an IP. this should be the same as set in EXIM.conf (don't forget to restart exim after the change)

Can someone tell me what i need to change / config to have it work on the IP adress that i want it to work on?