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A comment on Show HN: Maildown – Markdown email campaigns. Parent comment

Re:Show HN: Maildown – Markdown email campaigns by chris140957 on Sunday April 07, 2019 @04:54AM (#19595648)
The backend (Django) also verifies that the email address is valid. The frontend validation is just added as a an extra convenience
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Re:Show HN: Maildown – Markdown email campaigns by pushpop on Sunday April 07, 2019 @12:58PM (#19598126)
The problem is the standard for what is a valid email address is so varied with enough edge cases that what you might consider a “convenience” is actually breaking the site for other people.

There are quite a number of articles written about this topic, I’d recommend researching it.

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