On 07/11/13 13:21, Götz Reinicke - IT Koordinator wrote: > Hi, > > we have to setup a server which gets a copy of all messages send and > received by our mailserver as a 1:1 copy. Mails send to multiple > recipients should be calculated and saved per user. (great if you > usually have lost of mails send to groups of people.) > > So no dedublication should be used here. (e.g. save the message and > refer the different recipients to it.) > > How can I calculate the current traffic in the best way to extrapolate > the amount of space to be planed for the new server? > > We think to have a couples of days to be saved. > > Thanks for any hint or comment. Regards Götz > > You don't say what MTA you are using. If it's Postfix (the default in RHEL6), pflogsumm can provide such information from your logs.