: How can I create (or do I even need to create) an alias of a DNS MX record? I am in the process of moving my DNS records from Network Solutions to the Amazon Route 53 service. While I
I am in the process of moving my DNS records from Network Solutions to the Amazon Route 53 service. While I know and understand a little about the basic kinds of records, I am stumped on how to create the record that will point to the MX record on Network Solutions (if I'm even saying that right).
On Network Solutions I have this:
Mail Servers (MX Records)
Note: Mail Servers are listed in rank order
myapp.net
Add Sub-Domain
MXMailServer(Preference) TTL
inbound.myapp.net.netsolmail.net.(10) 7200 Network Solutions E-mail
I have read that the payload for an MX record state that it must point to an existing A record in the DNS. Yet in the example above, that inbound.myapp... record only has the words "Network Solutions E-mail" next to it. Our email is hosted at Network Solutions.
I have already created the CNAME records that look like this:
mail.myapp.net 7200 mail.mycarparts.net.netsolmail.net.
smtp.myapp.net 7100 smtp.mycarparts.net.netsolmail.net.
Since I am only using Amazon as the DNS, do I even need to do anything with that MX record? I appreciate your help, I googled and researched this before I posted, this is my first post on webmasters although I've been on SO for a few years.
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Best practice to create MX records is to create a name alias then point to that alias with MX record.
For example, you have a mail server with IP: 1.2.3.4 and need to receive email on domain example.com.
Create A record mail.example.com with IP address 1.2.3.4
Create MX record that points to mail.example.com
Note: Never create MX records that point directly to the IP address.
You created a CNAME alias which points to the domain name of the MX record, this won't do what you want. A mail server explicitly looks up MX records so you need to put the alias into the MX record, for my Google Apps account I have the following in my zone file:
mail.example.com. 300 IN MX 5 alt1.aspmx.l.google.com.
mail.example.com. 300 IN MX 1 aspmx.l.google.com.
example.com. 300 IN MX aspmx.l.google.com.
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