Google Activation Guide Postini Email Security - Manual (Page 12)

16 Activation Guide
To update your MX records:
1. Log in to your domain registrar (also called “domain host” or “domain
provider”).
See the instructions below for specific domain registrars.
2. Change the MX records for the domain listed in your activation email.
The activation email provides a list of MX records for switching mail flow to the
message security service. The activation email also provides your
Administration Console login information. You’ll need this information later
after switching your MX records, so be sure to save this email.
When you enter your MX records, log in to your domain registrar and enter
them exactly as they appear in the activation email, including the trailing dot at
the end of each line. In general, your MX records include the following details:
<yourdomain>.s<your system number>a1.psmtp.com.
<yourdomain>.s<your system number>a2.psmtp.com.
<yourdomain>.s<your system number>b1.psmtp.com.
<yourdomain>.s<your system number>b2.psmtp.com.
IMPORTANT: Always replace <yourdomain> with your actual domain name --
for example, solarmora.com -- when entering your MX records.
Several common domain registrars are listed below. If your domain registrar is
shown here, click the link and then follow the instructions for switching your MX
records. If your domain registrar is not listed here, see “Instructions for Other
Domain Hosts” on page 36.
GoDaddy
Network Solutions
Enom
DreamHost
Yahoo! SmallBusiness
DynDNS
IX Web Hosting
EveryDNS
No-IP
DNS Park
4d Web Hosting
Instructions for Other Domain Hosts
If you have trouble with this step, see “Troubleshooting MX Records” on page 39.
Important: Most ISPs and domain name providers that host the email for your
domain are compatible with the message security service. However, 1and1 and
XO Communications are known providers that are currently not compatible with
the message security service. The message security service is not compatible
with providers that don't release mail server information, or don't allow you to
change the MX records with their hosted email service.