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Cerberus
A few simple, but solid patterns for responsive HTML email templates and newsletters. Even in Outlook and Gmail.
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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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AFAIU this is a fork of caniuse.com; the features it tracks are probably a strict subset of those.
The feature definitions seem to be maintained manually, at https://github.com/hteumeuleu/caniemail/tree/master/_feature... assuming it follows the caniuse.com community model, information about supported browsers is similarly crowdsourced.
Not a framework but I’ve found Ted Goad’ Cerberus templates very useful.
I customized them, extracted them into modules and created a design system which I then translated to an email CMS.
Coverage is pretty good although Outlook still glitches in some circumstances.
https://tedgoas.github.io/Cerberus/
FWIW caniemail is unreliable and does not have full coverage.
Also with this level of complexity I’d rather start with a few tested patterns than navigate the insane labyrinth of email client inconsistencies.
https://github.com/Fyrd/caniuse
Targeting HTML rendering engines which are email clients.
Fortunately (at least for some of the newer features to be included)
I run an email forwarding service[1] so I deal with spam a lot.
Spam usually has bad formating, mixed charset, old/broken layoyt etc.
Most of time, spam are odd designs. Example they only have HTML and didn't have the corresponding plain text part. They have large pictures and too little text, they have many "invisible" part so that hide behind element to trick you to click the wrong thing.
Even in plain-text, spam tend to include random links, very long text, weird chracter etc
A nicely design, or a plain-text emails(only plain text) with nice format all are good signal of non-spam.
In other word, consistency is signal of non-spam emails. But sometime marketing emails-which you never explicitly subscribe to, you just register for an account and got marketing emails, can also be consider spam, but from google/hotmail point of view they don't consider these are spam and that's reason they have Promotion tab to put thing in there
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[1] https://hanami.run