Question: no password field for yahoo email
After the iOS 11 update, the password entry field in the Account Settings for my Yahoo email account has disappeared both on my iPad2 and my iPhone 6. I also have an AOL account on these devices, and this password field is still there. Any email I try to send from these devices is rejected because there is no email password for the Yahoo email system to verify. Has anyone else had this problem, and if so, how was it fixed? I have an old IPad Mini that has not been updated, and the password field is still there--so the disappearance must be related to the latest OS updates.
iPod touch, iOS 4.2