Originally Posted by Parsec
In reality you can create it however you like, it doesn't have to be a CNAME it could be just a plain A record (like www is).
But your main problem seems to be with the dns propogating. After creating it, the first thing you should check is if it resolves on the server itself with a simple host lookup or something ( host -a m.domain.tld ).
As to refresh, thats what the TTL is for (time to live). It's in seconds so simply divide the number by 3600 to see how long (hours) before dns is supposed to propogate.
Dear Parsec, it propagates on server itself, since i get:
s1:~# host -a m.domain.tld
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4336
;; flags: qr rd ra; QUERY: 1, ANSWER: 7, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;m.domain.tld. IN ANY
;; ANSWER SECTION:
m.domain.tld. 21600 IN CNAME domain.tld.
domain.tld. 21600 IN SOA ns1.domain.tld.mail.gma il.com. 2013021603 28800 7200 604800 86400
domain.tld. 21600 IN A 184.108.40.206
domain.tld. 21600 IN MX 10 mail.domain.tld.
domain.tld. 21600 IN NS bob.ns.cloudflare.com.
domain.tld. 21600 IN NS kay.ns.cloudflare.com.
domain.tld. 21600 IN TXT "\"v=spf a mx ptr ip4:220.127.116.11 -all\""
Received 253 bytes from 18.104.22.168#53 in 40 ms
So all i need to do is wait and see? If not, i will write results in few days.
Thank you for efforts, friend!