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A comment on Outlook.com Is Quietly Rejecting Email from Domains Without DMARC. Parent comment

Re:Outlook.com Is Quietly Rejecting Email from Domains Witho... by cowlevel on Monday November 09, 2026 @12:24AM (#50421394)
I self-host and don't have a spam filter. Spam makes up about 1 in 5 messages I receive. It's always the same spam campaigns that would be easily filtered with a few regexes.

Self-hosting allows me to use a different receiving address for each entity I contact, so I also know exactly who put me on spam lists.

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Re:Outlook.com Is Quietly Rejecting Email from Domains Witho... by pixl97 on Monday November 09, 2026 @12:06PM (#50428335)
It's been a while since I've been an SMTP server admin but when I was I managed a few hundred thousand mailboxes under different domains. Most likely know one knows about your domain and it has little traffic. On average I saw users domains get around 5 spam to 1 ham. Of course you have outliers. I had one domain that received around 1000 spam to 1 ham. That was a domain that looked like it could belong to a university and it got absolutely flooded.

Anecdotes are not a great thing to run mail servers on, broad statistics are.

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