YAHOO website and its popular Mail client are currently not working this morning in a severe outage that appears to be affecting hundreds of users.
Yahoo Mail has been suffering from issues for over an hour now.
Independent outage monitor Downdetector has registered over 4,200 reports from users insisting Yahoo Mail was not working properly.
Of those, 66 percent of them were said to be from users having trouble logging-in to Yahoo Mail.
Another 25 percent were stated to have issued with the website itself and a further eight percent were struggling to read their mail.
A map on the site showed affected areasthe UK and a number of territories in Asia were noted to have been hit hardest by the server problem.
In reaction to the outage, a cavalcade of Yahoo Mail users have taken to Twitter to express their frustration.
One said: "Probably the only time I need Yahoo and it’s down."
Another wrote: "All of Yahoo's NS servers are down.
"That's an impressive amount of fail."
A third declared: "Omg what happened Yahoo." The American firm has now confirmed the outage plaguing its website and email client.
In a statment, it said: "You may not be able to access some of our services, including email.
"Our top priority right now is getting this fixed.
"We appreciate your patience."