Re:Firefox desktop market share now below 9%
by teh_klev on Tuesday December 04, 2018 @10:51AM
(#18600468)
I've used imapsync in the past to migrate thousands of mail accounts from and old decrepit IMAP environment (with some weird edge cases) to a shiny new IMAP based mail platform.
It's a hugely flexible and versatile tool and it's quite zippy as well, can highly recommend.
https://github.com/imapsync/imapsync
After cloning the repository and installing the listed dependencies (some Perl packages available in your Brew / Ubuntu repository already), you can do:
Works great for importing to and from Gmail, but you might want to add a folder rewrite for the Sent folder (with --f1f2).But with FastMail, for those interested, the out of the box importing tools in their web interface work great, so no need for any command line tools.