No internet connection appears while I am composing an e-mail. This happens periodically and I have checked with Verizon. OK with them.
No internet appears periodically and cannot send message.
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Please try clearing cookies, cache, history and footprints. To do so, please go to https://help.yahoo.com/kb/new-mail-for-desktop/sln27197.html
Also, please make sure to update your browser and if the problem still persists try to access Yahoo Mail in another browser.