Solved: SMTP Server requires authentication - HP Support
https://h30434.www3.hp.com/t5/Scanning-Faxing-Copying/SMTP-Server-requires-authentication/td-p/6620552
Mar 14, 2018 · SMTP Server requires authentication Options Create an account on the HP Community to personalize your profile and ask a question Your account also allows you to connect with HP support faster, access a personal dashboard to manage all of your devices in one place, view warranty information, case status and more. Sign in / Create an account
DA: 56 PA: 10 MOZ Rank: 22