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Questions tagged [mx-record]

The MX record is a type of resource record in the Domain Name System that specifies a mail server responsible for accepting email messages on behalf of a recipient's domain.

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Benefits of using a subdomain for sending email?

Assume I own the domain name, example.org. I am creating a setup where I receive email sent to me@example.org using Google Apps. The MX records for example.org already point to Google's servers and it works great. Now, I have an application server…
Michael Brook
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Can an email server be set-up on an Azure VM?

I am considering the possibility of setting up a simple SMTP+IMAP email server for internal use on an extra small Azure VM. When I say internal use I don't mean "used by internal users", but for use as part of a larger system and to serve the main…
Ivan Zlatev
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Are SPF needed for domains that do not send mails and do not have MX record?

I have some domains registered that do not send mails. I have totally removed MX record for these domains on my DNS. Is it still useful to set an SPF record in order to avoid spammer to send mails as these domains? I read here that for domains that…
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How to include multiple spf domains with different mechanisms in a single spf TXT Record

EDIT : How to Mix the different mechanisms (a , mx , ip4 , ptr and include) to create single SPF file from 4 I know that 2 simple SPF records like v=spf1 include:_spf.google.com ~all v=spf1 include:otherdomain.com ~all can be merged to one…
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MX priority server behaviour

This is a question about MX procotol priority. If I have two server as MX with different priority: MX 10 serverA MX 20 serverB Is this guarantee by the protocol that the MX 10 is the prefered? Can the submitter choose the secondary for any other…
Tobia
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How can you test a backup / secondary MX server?

I'm wanting to set up a secondary MX server using Postfix but I am wondering what is the best way to test this prior to putting into production (by adding its MX entry)? One possible way is to test it with an entirely different domain name, ie buy a…
thomasrutter
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A way for DNS record to say "this domain has no mail server"?

What is the appropriate way to set up a DNS record that says "this domain has no mail server"? I assume I need a special MX record to do this, otherwise it will be assumed that the A record is the answer. I ask this question because it seems like it…
700 Software
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Why do some TLD have an MX record on the zone root? e.g. .ai

I have no idea why the following TLD have a MX record on the root level of the zone. This does not make sense at all. Does this show the technical incompetence of the NIC? Please comment If I'm wrong. (At least Postfix looks not to be able to send…
Roland
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MX records, better setup for load balancing and failover

Take domain example.com, it has two mail servers mail1.example.com and mail2.example.com, both already configured, usually I would go with the following setup: example.com. 1200 IN MX 10 mail1.example.com. example.com. …
Krdan
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What does MX in SPF mean?

I'm setting up an email server, and I'm a bit confused by SPF. Following some examples, I set my SPF record as follows... v=spf1 mx ip4:1.2.3.4 mx:mail.mydomain.com ptr:1.2.3.4 -all I follow what most of that means, but why is MX in there twice? I…
Dan Repperger
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Under what circumstances (if any) should an MX record point to localhost?

I'm thinking that there's absolutely no reason or justification for this, but before I open my mouth and get some admin in deep kimchi, I thought I should ask. Is there any circumstance in which an MX record should point to a loopback address? To…
HopelessN00b
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MX Record Priorities

What does do each of the values 0, 1, 5, 5, 10, 10 mean? Google says you can do that or use 1st 1st 3rd 3rd <-- how are these different or the same? Will 0,1,2,2,3,3 act the same as 0, 1, 5, 5, 10, 10 ?
Steven
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Can I setup an MX record for a particular user email address?

I would like to configure 2 MX records : - One MX record that identifies an email server to the domain @mycompany.com that will handle all of the emails except one email - Another MX Record that will redirect to another email server if the address…
fabien7474
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is there any way to determine the date a domain DNS record like MX record was published?

We need a way to determine when exactly a DNS record such as MX was published for a domain. Does anyone have a clue?
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MX Record Propagation

How long does it take a change in MX records to propagate? Is the MX record TTL the max time it will take or do we also need to wait for all DNS records to propagate? We are changing our mail server from Exchange 2003 to Exchange Online. Our…
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