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Our systems cannot send e-mail to a company that has no MX record. There is an SMTP server running on their IP address and they are able to get e-mail from gmail. Is it normal for mail systems to try to connect to a SMTP server at the A record when there...
Started by joeforker on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at serverfault):
Please see the Wikipedia page on MX Records.
Yes it is standard, per RFC 5321.
Normally yes, if no MX record exists, the A record should be used as a failsafe.
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I have abc.tv site which is configured on a.a.a.a IP and my mailing solution(test@abc.tv) which I want to configured on y.y.y.y IP address. Is is possible to have separate IPs fo my A record & MX record as below?
Domain name - abc.tv A Record - a.a.a....
Started by Chao on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at serverfault):
That means the host pointed to by an MX....
A y.y.y.y
The host pointed to by the MX record must have for pointing out this omission)
An MX record must be a name, not an IP.
Mail.abc.tv.
A a.a.a.a MX 5 mail.abc.tv.
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Say you own a abcd.com and you only want to use it to send and receive email via bob@abcd.com . You don't want to provide any kind of website.
Can you set up the DNS records to include an "MX" record and no "A" record?
Is this enough for sending and receiving...
Started by frou on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at serverfault):
As long as the name to be configured to handle inbound... .
For example: example.com can have a MX record pointing at mail.otherdomain.com .
As long as the system pointed at by the MX record has an A record itself, then yes.
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Ask your Facebook Friends
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We have several domains all pointing their MX records at mail.ourdomain.com, an internal mail server.
We are looking to outsource our email to a new supplier, who would like us to use mail.newsupplier.com; their mail server.
We'd rather not change all...
Started by NeilS on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at serverfault):
If they can't be the permanent middleman maybe just having them as a secondary MX record will help setup mail.ourdomain.com....
If I were in your situation, I would.
According to RFC 1123, the MX record cannot point to a CNAME.
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Possible Duplicate:
Get MX record via C program.
Is there any function in C on linux by which we can query MX record (like gethostbyname).?
Started by avd on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
NS_PACKETSZ]; /* big enough, right? */ ns_msg handle; ns_rr rr; int mx_index, ns_index, len; char dispbuf[4096]; if ((len = res_search(name, C_IN, T_MX, response, sizeof(response))) < 0) { /* WARN; for (mx_index = 0, ns_index ....
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What is the best way to lookup MX records for a domain from the command line?
Started by issackelly on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at superuser):
3 options, in order from least to most verbose:
host -t mx mydomain.com nslookup -q=mx mydomain.com dig -t mx mydomain.com.
Nslookup -q=mx mydomain.com
dig -t mx mydomain.com will work as well.
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Hi - we're trying to add an MX record to a Windows Server 2003 DNS server and getting the following error:
"A new record cannot be created. Node is a CNAME DNS record."
The domain is xyz.com. We create a new MX record and leave the "Host or child domain...
Started by Matt on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at serverfault):
MX and NS records The domain name used as the value of a NS resource record, or part of the value of a MX resource record must I constantly....
RFC 2181 forbids the use of a CNAME value in a MX record:
10.3.
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Lets say I have a domain that I run a web app on, for example cranketywidgets.com , and I'm using google apps for handle email for people work work on that domain, i.e. support@ cranketywidgets.com , jane@cranketywidgets.com , joe@cranketywidgets.com ...
Started by Chris Adams on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at serverfault):
Then the zone should look like this for example,
@ IN MX 1" and then blackhole....
You should never point your MX to a ip address to be RFC complian, make a A record for the ip address instead and point the MX record to it.
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I previously asked a question regarding MX records (and appreciate the thoughtful answers I recieved from SO'ers). Now that that problem is resolved, I want to step back and ask why there are MX records in the first place.
Specifically: Why does SMTP ...
Started by Jim Nelson on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
Well, the SRV record type is available....
In practise it would be preferable for all applications to make use of SRVIt seems like every other Internet protocol gets along just fine with DNS' A record.
Will use the MX record).
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I am writing an application that is requiring me to do a DNS lookup for an MX record. I'm not sure if anyone has had experience doing this kind of work but if you do, any help would be appreciated.
EDIT: The thing that I'm going for is an application ...
Started by Suroot on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
If you're on ....
Dig mx example.com | grep -v '^;' | grep example.com
dig is available on most linux / unix boxes.
The records to you via this query:
dig mx example.com
If you want just the lines with the mx records...
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