[MlMt] High Sierra, APFS, Time Machine, and MailMate...

[Steven M. Bellovin]

On 11 Dec 2017, at 9:42, Benny Kjær Nielsen wrote:

> On 11 Dec 2017, at 15:38, Steven M. Bellovin wrote:
>
>> On 11 Dec 2017, at 8:35, Patrik Fältström wrote:
>>
>>> On 11 Dec 2017, at 4:02, Steven M. Bellovin wrote:
>>>
>>>> I should add: the issue is not bandwidth to the disk--it works fine 
>>>> when backing up very large files.
>>>
>>> I have added the local IMAP cache to Time Machine "do not include 
>>> this directory" for backups.
>>>
>> Certainly worth a thought--I already exclude the MailMate index, so 
>> it's reloading everything anyway if I do a restore.
>
> 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.
>
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?