>> We are having troubles sending mails to an specific domain. If I ping 
the domain (ping domain.com.ar) it answers its IP
 >> address. when I ping -a that IP address, the answer comes from other 
site (a big ISP�s router) . If I tracert this IP or the
 >> domain I arrive to the router. However, they can receive mails from 
everywhere but from us, and we can send mails
 >> everywhere but them. Our provider says everithing is Ok. The same 
theirs. any idea?

>Hello again. The domain is lasvarinet.com.ar

The MX record for lasvarinet.com.ar is:

         lasvarinet.com.ar.  MX  IN  3600  mail.lasvarinet.com.ar. 
[Preference = 5]
         lasvarinet.com.ar.  MX  IN  3600  200.45.75.213. [Preference = 10]

That means that IMail should first try mail.lasvarinet.com.ar.  If that 
doesn't work, it should try a host called "200.45.75.213" (which isn't a 
valid hostname).  Essentially, that's like telling someone to telephone you 
at "1234 Main Street" -- it just can't be done like that.

IMail should be trying mail.lasvarinet.com.ar first, but if you look at 
your logs, you should be able to see what is going wrong with that address.

But there is *definitely* a problem with their MX records.

                                                    -Scott
---
Declude: Anti-virus, Anti-spam and Anti-hijacking solutions for 
IMail.  http://www.declude.com

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