I’ve tried your suggestion, but it seems that doesn’t works… In fact I’ve changed my ACL from manager to reader and I send mail normally… Maybe I should do something else?
I agree with the Server rule. Setting the mail file to Reader (see next post) will only stop the client from saving to the mail file, not from sending to the Mail.box.
I suppose one could enter the client/group into the acl (as no access) for the mail.box (mail1.box, mail2.box if configured), but the rule would be much more visible/documented/easy.
Sametime installs on top of Domino, so you have to run Domino on a server to install Sametime. It is advisable that Sametime run on a separate Domino server from your mail or Notes apps.