Can I have separate IP for A record & MX record
I have abc.tv site which is configured on a.a.a.a IP and my mailing solution([email protected]) which I want to configured on y.y.y.y IP address. Is is possible to have separate IPs fo my A record & MX record as below?
Domain name - abc.tv A Record - a.a.a.a MX record - y.y.y.y
please suggest
MX records were invented for precisely this application: allowing mail for a specific host to be handled by another host.
The first thing to point out is that MX records do not contain IP addresses, they container a pointer to a hostname.
So for your example you would have something like:
abc.tv. A a.a.a.a MX 5 mail.abc.tv. mail.abc.tv. A y.y.y.y
The host pointed to by the MX record must have an A or AAAA record and cannot be a CNAME record. (thanks to Ludwig Weinzierl in comment below for pointing out this omission)
An MX
record must be a name, not an IP. That means the host pointed to by an MX record for your domain must itself be directly resolvable to an A
record.
However there is no requirement for that A
to be part of your domain. For example you can have Google Apps handle the MX
records for your domain, while you manage the A records for the domain and www.
As an addition to the other correct answers.
MX records: not only can they be different from your primary domain A record's IP address, you can even have multiple MX records (called backup or secondary MX) and specify a priority value, for example:
MX 10 mail.abc.tv. MX 20 mail2a.abc.tv. MX 20 mail2b.abc.tv. MX 30 backupmail.provider-example.com.
As you also see in this example, mail exchangers needn't to be on the same domain.