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email-oauth2-proxy
An IMAP/POP/SMTP proxy that transparently adds OAuth 2.0 authentication for email clients that don't support this method.
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
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What makes you say the protocol is different for each provider?
I maintain a proxy that transparently adds support for OAuth 2.0 support to IMAP/POP/SMTP clients (https://github.com/simonrob/email-oauth2-proxy), and for normal use it doesn’t need to know anything about which service it is connecting to. Apart from advanced features such as CCG or ROPCG which are mostly O365 only, what is different?
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