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<p dir="auto">On 11 Dec 2017, at 16:43, Steven M. Bellovin wrote:</p>
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<div style="white-space:normal"><blockquote style="border-left:2px solid #777; color:#777; margin:0 0 5px; padding-left:5px"><p dir="auto">On 11 Dec 2017, at 9:42, Benny Kjær Nielsen wrote:<br>
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<blockquote style="border-left:2px solid #777; color:#999; margin:0 0 5px; padding-left:5px; border-left-color:#999"><p dir="auto">I was going to suggest leaving out the index (the `Database.noindex` folder) since that doesn't behave well with Time Machine. I don't think the other files should cause any problems and it's a lot more important to have a backup of your settings files and the `Messages` folder. You can also leave out the `Attachments` folder since it's just a cache.<br>
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</blockquote><p dir="auto">As I said, Database.noindex is already on the exclusion list. I know that that means MailMate has to rebuild the index if I ever restore the disk. Does it download all of the messages again, or does it just use IMAP queries to rebuild the indices from the stored messages? In other words, what do I lose if I don't back up Messages?</p>
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<p dir="auto">There's no advantage in having the <code style="background-color:#F7F7F7; border-radius:3px; margin:0; padding:0 0.4em" bgcolor="#F7F7F7">Messages</code> folder <em>when rebuilding</em> if you don't have <code style="background-color:#F7F7F7; border-radius:3px; margin:0; padding:0 0.4em" bgcolor="#F7F7F7">Database.noindex</code>. The advantage of the <code style="background-color:#F7F7F7; border-radius:3px; margin:0; padding:0 0.4em" bgcolor="#F7F7F7">Messages</code> folder is that you have a separate backup of your IMAP emails. This is important if something goes wrong at the server (or in MailMate) which deletes a bunch of emails. This would quickly be synchronized (either way) and you would only have your backup of emails left.</p>
<p dir="auto">-- <br>
Benny<br>
<a href="https://freron.com/become_a_mailmate_patron/" style="color:#3983C4">https://freron.com/become_a_mailmate_patron/</a></p>
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