Re: [Evolution] Migrating from Thunderbird via import without duplicates

[Zan Lynx <zlynx acm org>]

On 10/27/2020 10:29 AM, Milan Crha via evolution-list wrote:
> That feels like a lot of mails, or just few movies as attachments (just
> kidding). Do you know how many mails this is? My largest IMAP account
> has 498.162 messages at the moment, which is surely less than that
> yours. I do not download all of the history locally, only the last
> month is stored for the offline use, and even that not in all folders.

I cannot speak for him but I saw he was using Gmail. Their IMAP system 
duplicates messages and if you have a large number of folders, some of 
which include the same messages plus "All Mail", you can easily end up 
with a 5 or 6 times multiplier on message size.

This bothers me less since I tend to turn off local storage of IMAP and 
limit it to the most basic caching of messages I intentionally read. I 
can wait for a short message fetch. That helps a lot on Gmail too since 
I rarely read the "All Mail" folder.

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