I've been a thunderbird user for a long time. Over the years I've watched thunderbird eat up more and more of my C drive. I searched online for solutions but never found one that worked for my needs/level of tech savvy. Hopefully this post can clear it up and be flagged in a way that may help others in a similar predicament. I use Thunderbird on imap for 5 accounts between work and personal. Only 3 accounts are really "active". Each account averages 20-70 sent emails a week. Currently my profile size (according to WizTree) is 9.3GB. I would like to keep copies of all sent messages.. at least going back the last 2-3 years. Sent messages with attachments... no need to keep the attachment if the file size is over 1MB. Nothing else special needed. I don't really save many emails into separate folders, they are usually just deleted. I've already tried compacting folders... didn't change the profile size. Can I configure my settings to the parameters above? If so, there's text only emails from 2-3 years, of only 3 active accounts... that shouldn't be more than 1-3GB right? Thank you for your help, jamie