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Running a mail server on a VPS: what actually keeps you out of spam

BACKGROUND
1 SIGNALFIRST DETECTED 4 July 2026
Narrative synthesis pending — 1 signal collected.
How the story developed
4 Jul
Other feeds and industry voices
30 May
When Your VPS Blocks Outbound SMTP: What Actually Helps

<p>You spin up a VPS, install Gitea, and realize it needs to send email. You point it at port 25. Nothing happens. You try 587. Still nothing. Your provider is blocking outbound

REPORT · WHEN · Dev.toOPEN STORY
27 Jun
What 10,000 domains actually publish for email authentication in 2026

<p>Email authentication has been "solved" on paper for years. SPF, DKIM, and DMARC are old standards, every deliverability guide repeats them, and Google and Yahoo made DMARC

REPORT · HOW · Dev.toOPEN STORY
22 Jun
Land your AI agent's email in the inbox, not spam

<p>You give your AI agent a real mailbox, it sends its first batch of email, and half of it lands in spam. The agent did nothing wrong. The domain did — it's new, it has no

REPORT · WHAT · Dev.toOPEN STORY
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