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MX record valid for bind?

Posted on 2009-07-01
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Last Modified: 2012-05-07
I'm new to BIND and hosts files. Basically, I'm wondering if the following MX value in the testerdns2.info.hosts file is valid? It appears to be working fine when I perform a dig on it:

dig testerdns2.info MX

Please note the notation I used for the MX server though:

@      IN      MX      5 @

Is this in reality, the exact same as @ IN MX 5 testerdns.info.  ?

$ttl 60
testerdns2.info.	IN	SOA	ns1.smg-dns.com. chris.sunshinemediagroup.com. (
			1246484857
			60
			1801
			604800
			60 )
testerdns2.info.	IN	NS	ns1.smg-dns.com.
@	IN	NS	ns2.smg-dns.com.
@	IN	MX	5 @
subdomain.testerdns2.info.	IN	A	127.0.0.1
subdomain2.testerdns2.info.	IN	A	127.0.0.2
subdomain3.testerdns2.info.	IN	A	127.0.0.3
subdomain4.testerdns2.info.	IN	A	127.0.0.4

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Question by:chrismdoyle
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3 Comments
 
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Expert Comment

by:kevin_u
ID: 24759983
while that "works", since @ is a standin for the domain, I'd probably spell it out.
If I were doing it I'd also set up a separate mail server hostname, and appropriate IP.  Its just more flexible for the future.
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Author Comment

by:chrismdoyle
ID: 24760170
Thanks kevin, since the record is setup with the 2 @'s for the standin's currently, does this still work?
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Accepted Solution

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kevin_u earned 2000 total points
ID: 24760235
It should function, it is possible that some mailers might be too picky.

Does mail work from gmail? if so, i wouldn't worry too much.

Kevin


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