Trouble adding a subdomain to an MX record

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Greetings I try to add a new MX record for a subdomain 'email.miles.co.uk' for a CRM tool I'm integrating, but Route53 give me an error that I can only have 1 MX record. The problem is I can't append the value to the existing MX record as it is a route domain of miles.co.uk and delivers my outlook mails. If I update the MX record's name with subdomain 'email' then my outlook mails stop. I'm not sure what to do. Please help :) Thanks Mike

3 Answers
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Accepted Answer

You need to create a new hosted zone for email.miles.co.uk. In miles.co.uk, create NS records for email.miles.co.uk that point to the NS servers allocated for the hosted zone email.miles.co.uk. Then add the MX record for email.miles.co.uk in this new hosted zone, along with any other records. See: How do I create a subdomain for my domain that's hosted in Route 53? and Routing traffic for subdomains

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kentrad
answered 8 months ago
  • OK thanks, it's not resulted in the desired outcome as my CRM system won't verify the new zone mail.miles.co.uk. (I dropped the e from the front during trials) I'm wondering if the reason is because there is no A record for the new hosted domain, or have I missed a step.

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Is "email.miles.co.uk" a subdomain (meaning the email address will be someone@email.miles.co.uk ) or an A record of domain miles.co.uk (meaning the email address will be someone@miles.co.uk? It sounds like the MX record for domain mile.co.uk is already pointing to Outlook.com. You would create another A record for email.miles.co.uk, e.g, smtp.email.miles.co.uk or mx.email.miles.co.uk, then create a MX record for email.miles.co.uk pointing to the new A record.

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answered 8 months ago
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Just create an MX record for "email.miles.co.uk" in Route 53, in the same Route53 hosted zone. Make sure you have setup your mail server as needed, then send emails to someone@email.miles.co.uk

You won't need a CNAME, as the MX record will resolve properly as is.

Here is an example of my domain "awsyarn.com".
https://mxtoolbox.com/SuperTool.aspx?action=mx%3aawsyarn.com&run=toolpage

and email.awsyarn.com
https://mxtoolbox.com/SuperTool.aspx?action=mx%3aawsyarn.com&run=toolpage

I have two MX records in my Hosted zone, 1st one is for awsyarn.com and other one for email.awsyarn.com I hope this answers your query.

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answered 8 months ago
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reviewed 8 months ago

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