https://rozumem.xyz/posts/14
Article
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Documents the opaque, frustrating process of getting emails unblocked by Microsoft/Outlook
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Covers SNDS, SPF/DKIM/DMARC setup, and Microsoft’s JMRP/SNDS tools
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Argues Microsoft’s deliverability standards push small senders toward Office 365
Discussion
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Multiple commenters report permanent SNDS blocks with no recourse despite clean sending
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Key rule broken: mixing marketing and transactional email on same IP/domain
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Microsoft seen as deliberately opaque to drive O365 adoption; Gmail less strict
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“Victim blaming” framing criticized; infrastructure-level blocks ignore subdomain separation
Discuss on HN