Currently we perform a full back-up on our Microsoft Exchange server on a daily basis. However, the Monday-Thursday tapes are overwritten every week. The Friday tapes are kept for one month and then overwritten. I am concerned that one month is not a sufficient archive period for e-mail data. What happens if we needed to retreive e-mail messages for a lawsuit? I am curious what other peoples e-mail backup/archive strategy is at the current time.
