Unverified50% confidenceFactExact time
To make OAuth callbacks from third-party applications such as Gmail and Google Sheets work properly, it is usually necessary to configure a domain, a reverse proxy, and HTTPS.
1
Sources
50%
Confidence
Long-term
Relevance
10/17/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedCommon managed email services include Google Workspace, Microsoft 365, as well as Fastmail, Zoho, and Proton, all of which support binding custom domain names.65% similarUnverifiedTraditional OAuth phishing relies on forged login pages to lure users into granting authorization.65% similarUnverifiedGoogle usually requires email verification before login, while the OIDC implementations of some self-hosted or niche providers allow users to set any unverified email; this inconsistency in verification policies across providers gives attackers an opportunity.64% similarUnverifiedWith a self-owned domain plus an email alias service (such as SimpleLogin or addy.io), the domain belongs to the user, and in theory will not be invalidated by a service provider's decisions.64% similarUnverifiedAlthough some mainstream OAuth providers such as Google return an email_verified field, not all providers enforce email verification, and developers need to formulate strategies based on the characteristics of the provider they use.63% similar
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