I frequently have to maintain two Outlook calendars: one in a client's Outlook and one in my employer's Outlook. I would like to be able to synchronize them so that whenever one is updated, the same change takes place in the other. I can set up a rule in each one so that when I receive a meeting invitation in OutlookA, it is automatically forward to OutlookB and vice versa. However, when I do that, the "forwards" keeping pingponging (i.e., OutlookA receives a meeting invitation from a third party. It is forwarded automatically to OutlookB. However, then OutlookB automatically forwards it again back to OutlookA, which I don't want.)
When I create an meeting invitation or appointment, I can easily send it to the other system at the time of creation, so that isn't as much of a problem.
Any ideas, please?