Everydns.net will use the IP address assigned to axfr.everydns.net to request AXFRs from your primary nameserver. Currently this is [64.158.219.3], but this will change from time to time. Secrets don't belong in the DNS, anyway. It would be best to list this in your /etc/named.conf:
allow-transfer { any; };
Failing that, please permit ns1's networks, 64.158.219.0/24, 4.79.232.0/24 & 38.99.14.0/24, and ns2 [216.218.240.206], and ns3 [80.84.249.169], and ns4 [63.219.183.200] to request your zone data.
Please visit http://DnsReport.com to verify that we did in fact succeed in transfering your zone data during our hourly poll. Any red error message may indicate a permission problem (or another problem) that you should correct.