Faq: how mx records work, What is an mx record, Where are my mx records – Google Activation Guide Postini Email Security User Manual
Page 43: How can i see my mx records, How do i update my mx records
FAQ: How MX Records Work
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FAQ: How MX Records Work
What is an MX record?
An MX record tells senders how to send email for your domain.
When your domain is registered, it’s assigned several DNS records, which enable
it to be located on the Internet. These include MX records, which direct the
domain’s mail flow. Each MX record points to an email server that’s configured to
process mail for that domain. There’s typically one record that points to a primary
server, then additional records that point to one or more backup servers. For
users to send and receive email, their domain's MX records must point to a server
that can process their mail.
To filter email through the message security service, you must insert new records
that point to the message security service's servers.
For more about MX records, watch the video
Where are my MX records?
Your authoritative MX records are on your DNS provider's server. When you
change the MX record on your DNS provider, other servers will make copies of
these updated MX records over time.
How can I see my MX records?
To check your current MX records, follow these steps:
1. Search for "MX lookup" on Google.com.
2. Select a search result from the list.
3. Type your domain name in to the field.
4. Select MX records if it's not the default search query.
5. Click Lookup.
How do I update my MX records?
If your company has its own DNS servers, talk to your DNS administrator.
Otherwise, contact your domain name provider.