I am running Zimbra Open Source Edition version 4.5.6. Currently it is just used for testing on a server named macserver.xxxx.xxxxxx.com (x's used for privacy). I would like to have all outgoing messages be sent from firstname.lastname@example.org not email@example.com. I know in sendmail one would just create a genericstable entry but I can't find something analogous to this in Zimbra. Is this possible and if so how? Thanks.