25 Aug
2010
25 Aug
'10
4:59 p.m.
On Mon, Aug 23, 2010 at 11:08 AM, Gabriel Tabares gabriel.tabares@roboreus.com
One more thing, if this is the case, why does the nslookup respond straight away? Is the destination server trying to somehow validate the host where the connection came from?
It's entirely possible (and probable) that the mail server is attempting to do a reverse looking up the originating host. When the lookup times out, the connection goes through.
If the command
ping my-mail02.mydomain.com
returns immediately with data, that would support that theory.
M