Yes I'm using Rain. It's also strange because it seems like yahoo mail is inaccessible only at some times. And I noticed other Rain users complaining too. There is some delay on MTN, but it always opens. Through Rain the website just times out after a while.
Just to put all the trolls at ease, I use the paid version of gmail suite for work and the yahoo which I've had since school days for random other things where I also receive tons of spam. Just so happened that I got an important mail on yahoo today.
I can't access yahoo mail and tried asking yahoo customer support which is absolutely useless.
They suggested I reboot my router, idiots.
Also tried different devices, browsers and networks and still doesn't load.