Google gmail

Steve Freegard steve.freegard at fsl.com
Wed Jul 23 11:06:36 IST 2008


Marco mangione wrote:
> anyone know the ip pool of gmail? so i can put them in withelist

Sure:

[root at mail ~]# host -t TXT google.com
google.com text "v=spf1 include:_netblocks.google.com ~all"
[root at mail ~]# host -t TXT _netblocks.google.com
_netblocks.google.com text "v=spf1 ip4:216.239.32.0/19 
ip4:64.233.160.0/19 ip4:66.249.80.0/20 ip4:72.14.192.0/18 
ip4:209.85.128.0/17 ip4:66.102.0.0/20 ip4:74.125.0.0/16 ip4:64.18.0.0/20 
ip4:207.126.144.0/20 ?all"

Alternatively - I can recommend using 'list.dnswl.org' as a whitelist 
which will include these already:

[root at mail ~]# host 159.252.14.72.list.dnswl.org
159.252.14.72.list.dnswl.org has address 127.0.5.0

Whatever you do though - don't bypass SpamAssassin for Google IPs unless 
you want a load of spam.  Google's outbounds have been on several 
blacklists recently as they don't seem to be able to keep on top of the 
abuse of their services.

Google mail is a nice target for spammers due to Google's own privacy 
policy stating that they will not disclose the injection IP address 
anywhere in the headers as it allows the spammers and bots to hide 
behind them.

Regards,
Steve.


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