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I have multiple Microsoft Exchange accounts. One is my main account (call it; two others belong to clients that I support, and they have they own domains and their own distinct instances of Exchange (call the accounts and Is it possible to enter a calendar event (say, a meeting) in my main Exchange account ( and have that event automatically show up in the Exchange calendars associated with and My goal is to keep the calendars properly synchronized so that clients at those distinct companies can look at my calendars and know when I'm available for meetings. Right now, I create a meeting in the calendar associated with the accoutn and then I have to mail invitations to myself at and Then I have to go in and accept all those meetings, turn off the default reminder times, set this one or that as Private, etc--and all that's a pain.

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This is really a server fault question because this is quite possible using Exchanges publish to html/ical feature. BUT, your admin has to enable cause I'm pretty sure it is off by default.

If it IS enabled, basically the two of you will publish and sync a copy of your calendar to a third source, like Google Calendars.

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I am in a similar situation with a non-Exchange platform. What I have taken to doing, and this is not an automatic sync, is to invite myself to every meeting I schedule, and to forward invitations that I receive to the alternate accounts. The net effect is that my calendars all look the same.

Zimbra does offer me the option of auto-forwarding invitations between the accounts, but I am afraid that I will create a loop if it turn it on.

So it sounds like a hassle, but it really isn't so bad.

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You might consider something like OggSync. It might not be ideal for your situation, but I don't really think that anything is.

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