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My first E-Mail server
(lemmy.world)
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this post was submitted on 31 Jul 2023
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Mail-tester is just for outbound deliverability, nothing else. DNSSEC is really just for security practices. That doesn't really effect outbound deliverability though which is always a bigger concern for me.
I don't really agree. DANE, which builds on DNSSEC, will most likely be used to deny email outright or at least spam mark it in the near future. It provides much needed trust and security to a tool that in many ways is less secure than sending a physical letter. All it really needs is critical mass such that people are forced to implement it or risk their business critical email not reaching its recipient.
I've never seen a message denied for DNSSEC. It may be a thing they do in the future, I do think all domains should use it but it's not something that'll deny a message.