Hi,
I have a mail server that manages mail for about ten domains, using
bind-9.9.4-12.P2 on fedora20. I'd like to make sure my SPF record in my SOA
is set up correctly, and hoped someone could help. Currently I have the
following:
$TTL 1d
@ IN SOA ns.example.com. admin.ns.example.com. (
2011041707 ;serial (yyyymmddxx)
3h ;refresh every 3 hours
1h ;retry every 1 hr
7d ;expire in 7 days
1d ) ;minimum ttl 1 day
IN NS ns.example.com.
IN NS ns1.example.com.
IN NS ns2.example.com.
A 192.168.1.10
IN MX 10 smtp.example.com.
IN TXT "v=spf1 mx a ip4:192.168.1.11/32 ip4:192.168.2.11/32
a:smtp.example.com a:smtp1.example.com -all"
ns IN TXT "v=spf1 a -all"
ns1 IN TXT "v=spf1 a -all"
ns2 IN TXT "v=spf1 a -all"
smtp IN TXT "v=spf1 a -all"
smtp1 IN TXT "v=spf1 a -all"
I believe there is a new SPF TXT entry in addition to the one I've created
above that's now being used? The references I read were unclear.
Does this look correct? I'd have to add this SOA to every domain the mail
server manages, correct? The smtp and smtp1 servers are the only two
servers that should be responsible for this domain.
Any ideas greatly appreciated.
Thanks,
Alex
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