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Dovecot allows you to configure a master user which can be used to access user mailboxes without knowing their passwords. The master user can be used with imapsync (as well as most other IMAP tools) to copy the messages between servers. From the dovecot configuration file on my server: By adding master=yes setting inside a passdb you make the passdb a ...


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AFAIK, The CPU difference won't stop you from adding the host to your vCenter server. I have a client that has three vSphere 4.1 hosts in a vCenter server cluster all with different CPU's. You could migrate the powered off virtual machines to a new host without connecting this host to the storage array if you have a local datastore on the other hosts that's ...


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A trusted SSL certificate from a trusted 3rd party like Verisign or similar is required to do a cutover migration to Office 365. This is why you are getting the errors. You'll have to purchase and install a legitimate trusted certificate from a trusted online CA in order to proceed. You could probably get by with Comodo's free 90 day cert: ...


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When both mail servers use the same mail format (mbox, Maildir, MBX), the simplest solution is to just copy over the directory structures containing the mails, e.g. using scp. This also preserves the Message-IDs, as opposed to tools like doveadm copy. Another possibility is to use the IMAP-protocol itself for IMAP copying using tools like imapsync. But in ...



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