Files Are Hard (2015)
I have no idea on how many mails the author receives, but anyway I would suggest to take a look at Claws Mail. <a href="https:&#x2F;&#x2F;www.claws-mail.org&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.claws-mail.org&#x2F;</a><p>I have all my mail since forever online, that is, tens of thousands of posts including attachments in multiple inboxes belonging to multiple accounts: everything since my Internet day one (20+ years), the earlier messages imported from Eudora before moving to Linux.
It&#x27;s all in my $home, and searches are damn fast: fractions of seconds for header searches which are indexed, tens of seconds to minutes for searches into the body. As far as I recall, I never lost a single file.<p><pre><code>  ~$ du -chs Mail
  3.7G Mail
  3.7G total
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Might post some spam from the late 90s if anyone is interested:)