Marriage of true minds admits impediment
Mrs. Bunch uses Yahoo mail on her iPad. One of my e-mail accounts is the backup for that Yahoo account. A week or two ago, I started receiving messages from Yahoo, warning that as of September 20th, Yahoo mail messages could not be read on an iPad running iOS 8.0. I decided to take no action, because:
1. it wasn't clear to which Yahoo account they referred;
2. Mrs. Bunch's iPad had long been running iOS 9, not iOS 8;
3. they had not bothered to inform her; and
4. sufficient unto the day...
Came the day, and what I expected did not happen. Instead, all of Mrs. Bunch's Yahoo mail, excluding the Sent folder, disappeared, in front of her eyes. I confirmed this was real and not an iPad-artifact by logging into the account on a laptop. It turns out that if you have a Yahoo account, and your e-mail disappears, they have a standard interaction that no human need ever interfere with, to request the recovery of your e-mail. Whether this is reassuring (as in, good customer service) or scary (as in, your e-mail disappears from their software so often that they have to have a robocall to fix it), is up to the reader.
The Yahoo auto-responder said to check back in 8 hours. In the meantime, I tried to install the iOS 10.2.1 package which my dear wife had in Settings. iOS returned the message that it was unable to continue: verification was impossible as I was not connected to the internet. "What really happened", I think, was that Apple had withdrawn the plagued 10.2.1 update and was unable to verify the files for that reason. I erased the 10.2.1 update. It strikes me that proper procedure would have been for Apple itself to tag or erase an update which could never be used. Then I requested an update, which turned out to be iOS 11. There was never a choice to install any level other than 11. Installation went OK, and when it came time to verify the update package, of course the iPad was connected to the internet.
Back to Yahoo. After close to a day, the e-mail in the folders seemed to have returned. But not yet the Inbox. All it holds is the e-mails that came in after the disappearance. In the midst of my wife's trauma, I was entertained to see an article that told of iOS 11 and e-mail problems. This is our version. iOS version: impedimental.