Since mx1 and mx2 have the same IPs included,
it's a waste to postfix's chosen space for IP addresses. For example, the 5 MX
IPs could have 2 duplicates.
So I am not sure why apple has this wasted setup.
Thank you.
>
> Ken Peng via Postfix-users:
>
> >
> > Hello
> >
> > iCloud mail has t
Ken Peng via Postfix-users:
> Hello
>
> iCloud mail has two MX RR:
>
> icloud.com. 3600IN MX 10 mx01.mail.icloud.com.
> icloud.com. 3600IN MX 10 mx02.mail.icloud.com.
>
> But these two MX have the same IPs included.
>
> mx01:
> mx01.mail.icloud.co
Forgive me if I’m wrong but the advantages I can see:
- load balancing / redundancy
- failover
- geoDNS
This would be for handling of incoming connections. I have no knowledge of
apples infrastructure whether they are using geo-loadbalancer across multiple
datacentres, whether their dcs are
