HI!
I’m migrating from an old Merak mail server to Zimbra. I has to be done without any downtime.
My idea was to:
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Make zimbra work as a relay for the current server (zimbra can send mail through the ode server)
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Set a POP3 connector like Fetchmail to download incoming mail from the old server (this way mail stays on the old and the new server)
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After all users are migrated to the new server change the MX record to point to the new one and disable the relay function.
My question is about Fetchmail. Has anyone any experience wit it? Are there any known problems with Fetchmail and Zimbra?
Maybe someone has a good tutorial on how to integrate it with Zimbra?