[Cialug] RFC & best practices for mail server hostnames?

[L. V. Lammert]

At 12:55 PM 2/1/2013, Dave Weis wrote:


> > Actually, those are valid *inbound* email servers, .. outbound 
> servers technically do not need to be listed; it would be
>  > *nice* if they were required, but I have never seen that implemented.
>
>But they are:
>
>[djweis at charmed ~]$ nslookup -type=txt statefarm.com
>Server:         67.224.64.31
>Address:        67.224.64.31#53
>
>Non-authoritative answer:
>statefarm.com   text = "v=spf1 ip4:12.34.246.0/24 ip4:204.94.39.0/24 
>ip4:204.118.102.0/24 ip4:205.166.218.0/24 ip4:205.242.228.0/23 ~all"

Ahh, .. but those are not MX records, are they? The point at that 
time (I believe) was that mail41 did not have an MX record.

;; ANSWER SECTION:
statefarm.com.          1200    IN      MX      5 mail3.statefarm.com.
statefarm.com.          1200    IN      MX      5 mail4.statefarm.com.
statefarm.com.          1200    IN      MX      5 mail5.statefarm.com.

         Lee