Hello,
last weekend we migrated to an exchange 2013 server.
We had a SBS2003, went to SBS2011 and then to exchange 2013.
While installing Exchange created some recieve connectors on its own and I'm not sure if I should alter them.
In the send connector I placed "mail.host.com" as FQDN
in the recieve connector it still mentions SERVER1.host.local
At this moment I'm able to send and recieve mails without any problem Execpt to some domains.
There I get 4.4.2 Connection dropped due to socketerror
We have two internet connections and outgoing mails goes out over a Cable connection.
Incoming mail come over ADSL
I did an helocheck, this pointed out that the IP from HELO, mail.host.com returns the Cable connection.
So I created an PTR record for this IP pointing to mail.host.com
But checking with mxtoolbox still points out:Warning - Reverse DNS does not match SMTP Banner
should I alter the FQDN on the default frontend connector?
