Zone file mx

Serial Number — Version number of the zone. As you make changes to your zone file, the serial number will increase. Time To Refresh — How long in seconds a nameserver should wait prior to checking for a Serial Number increase within the primary zone file.

An increased Serial Number means a transfer is needed to sync your records. Only applies to zones using secondary DNS. Time To Retry — How long in seconds a nameserver should wait prior to retrying to update a zone after a failed attempt. Your problem is missing trailing dot in your MX records. Aparently, now trailing dot is missing in both - label and target hostname of the MX record.

Improve this answer. Sandman4 Sandman4 3, 2 2 gold badges 20 20 silver badges 27 27 bronze badges. Thanks -- I have made the edit. I don't have 'host' installed on the box, and I'm afraid I know nothing of yum. It moans that there is no MX record present at that domain.

I assume I need to wait for propagation? Thanks -- I missed the dots thing. Changed, restarted named. My remote machine is still moaning about it not having an MX record though. The trailing dots were also explained in my first answer.

Your setup looks correct to me now. Heres the result of host -t MX gamengai. It does! Thanks -- I actually got a mail now. Now to just change the email address that has this one registered to at that bank and never deal with it again. This is not working actually there should be tailing. Sign up or log in Sign up using Google. Sign up using Facebook.

Sign up using Email and Password. Step1: You compose a message using an Email client of your interest. An email client can be an application installed on your computer like MS Outlook, Mozilla Thunderbird, or a web based email client like gmail. You will often encounter this term, when discussing about e-mails. If you are using an application like thunderbird or outlook, you might already know the fact that you need to provide the below things to configure it, so that you can send and receive emails.

Step2: After you have composed your email with the help of your preferred Email Client, the email client will connect to your SMTP server the configuration that you have provided, while configuring your email client. Say for example, your SMTP server is mail. Once your email client has connected to mail.

So when your mail client forwards the message to your SMTP server, it will give the entire message you composed, with the help of those well defined commands. So what your email client basically does is to connect to this 25 port on your SMTP server, and run the well defined set of commands to send an Email. This lookup is done using a DNS query.

Say for example you are sending an email to x example. From the discussion we had above, you might have already got an idea of what MX record actually is. The Domain Name System DNS has several types of resource records that full fill the name to ip address translation Directly or indirectly.

The most commonly used resource record are mentioned below. Similar to the above mentioned resource records in DNS, MX records are used to specify the mail server for a specific domain. In simple language, an MX record should return the fully qualified domain name of an email server and its preference value we will be discussing more about this preference value in some time.

So before we go ahead and see this in detail, please keep the below two things in mind. Do not get confused with the configurations you have already seen somewhere else, because BIND zone file offers too many shortcuts it provides multiple methods and shortcuts to achieve the same result.

MX record in DNS zone file is an optional resource record. Which means, if you do not provide email services for your domain, you can omit this record altogether. Its an optional resource record and not compulsory. As i mentioned earlier, if you are new to DNS the above zone file contents might be confusing. So before going ahead i would recommend reading the below tutorial for getting a basic idea about zone files. Now the MX record in the above shown zone file for example.

The format is ttl class rr preference name. If you do not give this ttl value which can be anything like , 1h, 2h, 1w, 2w etc etc , our MX record will take the default ttl value of 1h which is mentioned at the beginning of our example zone file. Any resource record, no matter what, which does not have its own TTL value in the beginning, will take the default TTL value of the zone file Typically mentioned in the beginning of the zone file.

MX: The type of our resource record. As we are specifying the mail server for our domain example. A lower number means high preference. This is the reason we have an A record, for mail. If its not part of the same zone for example, you have given your mail server as something like mail. Let's now see another example of zone file, with MX record. Our MX records for the domain example. So we now have two mail servers that will be responsible for receiving mails for the domain example. However mail2.

Hence we do not have an A record for mail2 inside our zone file. If our second MX record was something like mail2. In the above shown example, mail.