The company also recommends users connect any Yahoo accounts directly to their email client or provider of choice rather than relying on automatic forwarding to keep everything in one place. It also offered a reminder that it has multiple mailbox support for those who might be interested.

The last few weeks have been rough on the former internet giant. In September, Yahoo confirmed a 2014 security breach that affected 500 million users two months after Verizon announced a deal to buy the company. According to reports this week, that deal may very well be in jeopardy. Reports also surfaced this month that Yahoo gave the US government access to all of its users' incoming email last year, allowing authorities to scan "hundreds of millions" accounts in compliance with a classified request. Even though the company says disabling forwarding as part of previously scheduled upgrades, the timing certainly seems interesting.