What is TTL value in MX record?

The TTL is a value in a DNS record that determines the number of seconds before subsequent changes to the record go into effect. Each of your domain’s DNS records, such as an MX record, CNAME record, and so on, has a TTL value.

How do I set an MX record in DNS?

Click on the domain name you wish to create an MX record for. Click Manage DNS Records, in the DNS column. Here you will add the desired MX record, provided by your host. Select MX from the Type drop-down menu.

What is a MX record in DNS?

A DNS ‘mail exchange’ (MX) record directs email to a mail server. The MX record indicates how email messages should be routed in accordance with the Simple Mail Transfer Protocol (SMTP, the standard protocol for all email). Like CNAME records, an MX record must always point to another domain.

Can MX record point to Cname?

As stated in the IETF (Internet Engineering Task Force) RFCs (Request for Change), it is not permitted to point an MX record to an alias/ CNAME.

Is higher TTL better?

A higher TTL reduces the perceived latency of a site and decreases the dependency on the authoritative name servers. The lower the TTL, the sooner the cached record expires. This allows queries for the records to occur more frequently.

How is TTL value calculated?

Windows. On Windows, you can use the nslookup utility to check the DNS TTL values for a website. First, open a command prompt window. This will return the authoritative name server’s info for that domain, including the default TTL in both seconds and hours.

Can an MX record point to an IP address?

No, MX records must not point to an IP address. MX records should point to address records (A or AAAA), domains, or hostnames.

Can you have 2 MX records?

Yes, it’s possible to have more than one MX record for one domain. Moreover, it is possible to assign priorities to them.

Do I need an MX record to send email?

2 Answers. No you don’t need an MX record. An MX record designates where email for a domain goes, not where it comes from. Anyone using the MX record as a test to determine if the sending server is valid is doing it wrong.

Can an MX-record be an IP address?

It’s not possible for an MX record to have an IP address as its data.

What should MX-record point to?

MX records always point to a domain, never to an IP address.

What is a good TTL?

Generally, we recommend a TTL of 24 hours (86,400 seconds). However, if you are planning to make DNS changes, you should lower the TTL to 5 minutes (300 seconds) at least 24 hours in advance of making the changes. After the changes are made, increase the TTL back to 24 hours.

What is the default TTL for MX record in DNS?

After this cache expiry of 1 week, the DNS client should re-fetch it again from the DNS server of the domain. If you do not give this ttl value (which can be anything like 300, 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. )

What does TTL stand for in DNS records?

Time To Live, or TTL for short, is the sort of expiration date that is put on a DNS record.

What’s the best TTL value for a TXT?

For records that rarely change, such as TXT or MX records, it’s best to keep those somewhere between an hour (3600s) and a day (86400s).

What kind of records should have longer TTL’s?

Here are the top records that should have longer TTL’s: 1 MX record (points to your mail server) 2 DKIM and SPF (usually configured with MX records) 3 TXT record More