Consolidating google apps domains
Allow specific IP addresses to send mail on behalf of your domain.
If you need to authorize a list of IP addresses that can send mail for your domain name, use the mechanism ‘ip4’ and ‘ip6’ respectively and separate them with spaces, for example:“v=spf1 ip.233.167.99 ip80::0C:417A -all" IP addresses of the same class may be published with a slash, i.e., 192.168.1.14/32, like "v=spf1 ip18.104.22.168/38 ip80::0C:417A/96 -all" 3.
The idea is that, for security and administration purposes, you could create .
Odds are, schools managed their previous on-premise email and documents servers using similar aliases and they want to preserve that structure when adopting Google Apps.
The specifications for SPF (Sender Policy Framework) require only one TXT record.
If you need specific help with your account, feel free to contact our Support Team.
This article describes how you can use canonical URLs to improve link and ranking signals for content available through multiple URL structures or via syndication.
Suppose your page can be reached in multiple ways: It's a good idea to pick one of those URLs as your preferred (canonical) destination, and use 301 redirects to send traffic from the other URLs to your preferred URL.
A server-side 301 redirect is the best way to ensure that users and search engines are directed to the correct page.