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Help configuring Dnat

Hi folks, I'm having some problems allowing mail flow through with mimecast.
This site lists the ip ranges and ports that are required:
Global Data Centers - Mimecast

My netgear has these port forwarders:

# Service Name Start Port End Port Server IP Address

1 PPTP 1723 1723 192.168.1.x
2 SMTP 25 25 192.168.1.x
3 WEB HTTPS-443 443 443 192.168.1.x
4 Web-HTTP Port 80 80 80 192.168.1.x
5 SBS - Port 987 987 987 192.168.1.x
6 SBS - RWW 4125 4125 192.168.1.x
7 LDAP 389 389 192.168.1.x
8 Journaling 110 110 192.168.1.x

As far as I can tell, this is all that's required for mimecast.

I have created Dnat rules for each of the above but delivery is still queued so I must be getting something wrong.

Can anyone suggest a configuration that would work on the UTM?

Many thanks

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0 apijnappels over 11 years ago

You need to create the DNAT rules for traffic arriving at External (Address) otherwise the DNAT rules will not be triggered.
Also you need to either check "automatic firewall rule" or create a corresponding firewall rule yourself.
If this doesn't work than please click "Go advanced" and upload some screenshots of your DNAT config.
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0 Fizzer over 11 years ago

Cheers for the advice, after reviewing my DNAT config it was all perfect apart from one tiny thing - rules not enabled

Yes I'm an idiot, quite relieved though, I'd rather be an idiot with a working UTM than a clever person with no mail... :@)
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