I hope to add the function of only downloading the emails of the last 30 days by default

[dc190]

As in the title, because I have a lot of accounts and a lot of emails, if I download all of them by default, there will be 80,000+ emails, which will cause the em client to always open for a while and then crash

[Gary]

You will find this option in Menu > Accounts. Then in the IMAP or Exchange tab for your account.