i have some ideas:

- adding an option to not download emails that bigger than specific defined size.
- separating 'account name' from 'email name' like outlook
- i had spend some hours to set up filters. but have no success. can you make it simpler and workable?
- some mail servers don't have certification for ssl/https connection, and simple mail doesn't work with them. outlook will work with them regularly. see below:

you are best