coyoteCom wrote:
I'm having a similar issue, it may have something to do with removing links to "iCloud".
Nope. The issue is the Yahoo mail servers are crap and always have been. they have a nasty habit of getting out of sync with each other. There are hundreds and you have no control over which one you hit.
The only way to avoid it entirely is either use the yahoo mail app or use web based email.
You can try to get things working again by deleting the account, rebooting your phone and going somewhere else... a different WiFi network in another location where the ISP's egress point to the Internet will have a different IP address, or try switching to cell data instead of WiFi or vice versa.