Well here's what I did:
1) Signed up for ipipi.com
2) Paid and got credits
3) Tested Ipipi from their own site with a message to my mobile phone (in France)
4) Changed the settings in the zimlet to contain my username and password for ipipi
5) I reloaded everything on our zimbra NE server
6) Right clicked the zimlet and put in my +33 xxxx number and a message
7) Zimlet said "sms sent" with the green message thing etc
8) Message never ever arrives
Is there a log I can look at somewhere maybe that might give a clue?
Thanks