Outlook for Microsoft 365, Outlook 2019 and Outlook 2016 Secure your Gmail account with 2-Step Verification. This is a bit more work but also quite a bit more secure and highly recommended. Solution 2: Enable 2-Step Verification (Recommended)Īnother way to go would be to enable “ 2-Step Verification”. This can be done via the “ Allow less secure apps” page where you set it to “On”.īy default, Basic Authentication has been turned off in Gmail. Solution 1: Re-enable Basic AuthenticationĪ quick way to solve this, is to re-enable Basic Authentication for Outlook in your Google Account Settings. This is because Google has turned off Basic Authentication by default for all new accounts and accounts which haven’t synced within the last 30 days and only lets you authenticate via the OAuth 2.0 standard.Īs a result, you’ll get Send/Receive errors (0x800CCC0E) and could get prompted for your Gmail password again in Outlook and the login could fail even when you supply the correct password. When configuring your Gmail account in Outlook (or other mail clients such as Thunderbird and Mail apps on (older) smartphones), you may run into continuous password prompts or sync errors.

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