Configure MIAB only for subdomain

1

Hi!

I’m reading setup process instructions over and over again and would like to confirm whether my plan is doable.

I don’t want to change my main domain in any way - ABC.com - this domain is set, used everyday (web, emails etc…)

What I want is to configure everything using mail.ABC.com - I only need mail services, don’t care about webservice, contacts, etcc. I would like to create emails user@mail.abc.com

What I have done was to ask my domain provider to create two glue records for domain mail.abc.com (ns1.mail.abc.com and ns2.mail.abc.com) and point subdomain mail.abc.com to these two glue records.

During installation, I plan to set up the MIAB to use mail.abc.com.

Is that a good plan?

Thanks,
Adam

1 Like
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That is what happens by default basically. Except …

Your terminology is incorrect here … I am presuming you mean “and point the IP address of the VPS I will be using for Mail-in-a-Box” to those two glue records.

If that is not correct, then you are doing something wrong.

Please refer to my response to your other post on this topic: MIAB - domain name vs subdomain - security concern? - #5 by alento

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With the exception that MOST people do not want to send email to someone with that type of email address (user@mail.abc.com). Most people are conditioned to think that email addresses are always user@domain.com … and many people WILL make that mistake. So if you take this path you may want to alias abc.com to mail.abc.com.

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Thank you alento,

Yes, you are correct. I’m pointing my external IP to glue records.

The only concern was that the MIAB would interfere with abc.com, while being configured on mail.abc.com subdomain.

5

I have reread your post and am looking at it through fresh eyes. I think that i missed something and gave you incorrect advice. I read your post as I want to have emails such as user@mail.abc.com and somehow totally missed that you are ALREADY using the domain abc.com for the web and email … so, my comments were incorrect. To do what I now think you want to do, which is to create a mail server handling ONLY mail.abc.com, you need to take a slightly different path.

I highly recommend that you PM me with your actual domain name and what hostname you wish to use, then I can give you exact directions.

Basically, if I am now understanding correctly, you have need to handle DNS externally from MiaB for the new mail.abc.com email service. To accomplish this, remove the glue records that you created. They will not be necessary. Do the setup of MiaB as normal, making sure that you follow my advice on creating the initial user email account and confirming the hostname is created properly. Then in your external DNS - whatever DNS you are now using for abc.com - you need to add records for MiaB including the A record mail.abc.com pointing to your MiaB IP. Additionally a MX record for the mail subdomain needs to be pointed to mail.abc.com with a priority of 10. You will also need to carefully add other DNS records as shown in the admin area of MiaB under Settings>External DNS. Make sure that the entries are all for mail.abc.com and not entered incorrectly as being for abc.com.

I am really sorry for the confusion … please confirm that I understand correctly now. And PLEASE feel free to PM me for additional assistance with this.

1 Like
6

Thank you every much alento for so much attention. I think it will be wiser to get new domain for my test. It no so big costs and there will be no risk of mistake with my current setup.

Thanks,
Adam