99MAIL.US - Почта // Имеет API для чтения почтыIMAP, POP3 // API похоже на GMX.LIVE

This account lasts a long time and never dies, I have successfully tried logging in 50 000 accounts from a single IP without any problems.
This account can only view mail and change passwords. It cannot send emails or access other features.
Although the account lacks IMAP capabilities, it does have an API to read emails. (Sign in and click API to learn more)
Login instructions: Go to 99mail.us => Login.
File format login, pass