Create MX Record for Subdomain
7,014
This is how I would configured it, based on the slightly vague information, provided. You could make adjustments, as needed:
$TTL 1D
@ IN SOA ns.domain.edu. support.domain.edu. (
2017090501 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
NS ns.domain.edu.
MX 10 mail.domain.edu.
TXT "v=spf1 mx ~all"
ns IN A 10.10.10.2
mail IN A 10.10.10.10
student IN MX 10 mail.student.domain.edu.
student IN TXT "v=spf1 mx ~all"
mail.student IN A 10.0.0.10
$ dig domain.edu any
;; ANSWER SECTION:
domain.edu. 86400 IN SOA ns.domain.edu. support.domain.edu. 2017090501 86400 3600 604800 10800
domain.edu. 86400 IN NS ns.domain.edu.
domain.edu. 86400 IN MX 10 mail.domain.edu.
domain.edu. 86400 IN TXT "v=spf1 mx ~all"
;; ADDITIONAL SECTION:
ns.domain.edu. 86400 IN A 10.10.10.2
mail.domain.edu. 86400 IN A 10.10.10.10
$ dig student.domain.edu any
;; ANSWER SECTION:
student.domain.edu. 86400 IN MX 10 mail.student.domain.edu.
student.domain.edu. 86400 IN TXT "v=spf1 mx ~all"
;; AUTHORITY SECTION:
domain.edu. 86400 IN NS ns.domain.edu.
;; ADDITIONAL SECTION:
mail.student.domain.edu. 86400 IN A 10.0.0.10
ns.domain.edu. 86400 IN A 10.10.10.2
P.S. Using a particular SPF mechanism is an administrative decision in most of the cases, rather than technical.
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Author by
zegufe
Updated on September 18, 2022Comments
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zegufe almost 2 years
I have two Zimbra mail servers. One of them serve for stuff and the other one serve for student. So I want to create use two different mail template like [email protected] and [email protected].
I have no problem for [email protected].
For student I created a sub domain like studentlogin.domain.edu
I use Bind 9 on Centos 7.
But when a try a mail a have error message like "The address not found".
You can see my config.
studentlogin.domain.edu. IN MX 10 mail.student.domain.edu. studentlogin.domain.edu. IN A XX.XXX.XXX.XXX studentlogin.domain.edu. IN TXT "v=spf1 a mx ptr a:mail.student.domain.edu mx:mail.student.domain.edu ip4:XX.XXX.XXX.XXX ~all"
What I should do?
Please help.
Best regards.
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zegufe almost 7 yearsThank you very much Chris. My rDNS record is correct. In addition when i use same subdomain and same mail address such as student.domain.edu subdomain and [email protected] mail it works. But when i use different subdomain and mail address like studentlogin.domain.edu and [email protected] it doesnt work.