100k emails is probably less than 10 GB, depending on attachments.
It depends. 28.8k emails from google takeout = 4.2Gb.
Re:Mutt – Text-based mail client for Unix
by chrisseaton on Friday June 10, 2022 @03:46PM
(#31698602)
Still not even remotely in the range of requiring specialist software. Fits the RAM of a ten-year-old laptop.
Re:Mutt – Text-based mail client for Unix
by jethro_tell on Friday June 10, 2022 @01:47PM
(#31697255)
it does but most mail clients don't really let you process more than a few hundred messages at a time.
I have a couple hundred thousand emails in FastMail and both their web client and Apple’s Mail app seem to scale to this absolutely no problem.
100k emails is way way less data than you think it is. Will likely fit in your laptop’s RAM!