Firewall rules (IP addresses) to enable mail delivery from zoneedit

[laczik]

For what IP address / address range do I need to open port 25 to enable mail delivery from zoneedit servers?

Thanks,
John

 

[sandy]

there are two:

mx-caprica.zoneedit.com. 259 IN A 166.88.18.34
mx-caprica.zoneedit.com. 259 IN A 23.27.50.10

thanks
sandy