After upgrading from 6.0.x to 7.0.x the Social Zimlet didn't work anymore but was throwing error messages like:

Code:
HTTP ERROR 403
Problem accessing /service/proxy. Reason:
FORBIDDEN
I've investigated the reason and found that during the upgrade not all necessary settings for zimbraProxyAllowedDomains have been set.

The following script will add the needed settings for all COS' on the server:

Code:
#!/bin/bash
for cos in `zmprov gac`
do 
zmprov mc $cos +zimbraProxyAllowedDomains api.tr.im
zmprov mc $cos +zimbraProxyAllowedDomains *.webex.com
zmprov mc $cos +zimbraProxyAllowedDomains api.bit.ly
zmprov mc $cos +zimbraProxyAllowedDomains *.twitter.com
zmprov mc $cos +zimbraProxyAllowedDomains *.tweetmeme.com
zmprov mc $cos +zimbraProxyAllowedDomains *.whitepages.com
zmprov mc $cos +zimbraProxyAllowedDomains *.yimg.com
zmprov mc $cos +zimbraProxyAllowedDomains *.yahoo.com
zmprov mc $cos +zimbraProxyAllowedDomains *.digg.com
zmprov mc $cos +zimbraProxyAllowedDomains *.yahooapis.com
zmprov mc $cos +zimbraProxyAllowedDomains *.linkedin.com
zmprov mc $cos +zimbraProxyAllowedDomains twitter.com
zmprov mc $cos +zimbraProxyAllowedDomains *.facebook.com
zmprov mc $cos +zimbraProxyAllowedDomains *.zimbra.com
zmprov mc $cos +zimbraProxyAllowedDomains *.maxmind.com
zmprov mc $cos +zimbraProxyAllowedDomains *.csgnetwork.com
done
HTH