Trendoday

Outlook.com Is Quietly Rejecting Email from Domains Without DMARC

169 comments

  • Points22
  • Comments12
#9Rank now 1
#8Peak rank
2Days on list
95Score · 7d
Nov 8, 2026First seen
Rank · 7 days

On Hacker News

Points
22
Comments
12
Submitted by
xmddmx
Posted
Nov 8, 2026
Site
mailroute.net

Story details from Hacker News ↗ · linked article on mailroute.net.

Trending history

Outlook.com Is Quietly Rejecting Email from Domains Without DMARC was first seen on Hacker News · Front page on Nov 8, 2026. Since then it has appeared in 19 checks on 2 different days. Its best position was #8 of 30, reached on Nov 8, 22:54 UTC. It is #9 right now, slipping from #8 to #9 over the last 6 checks.

Rank history

Position on Hacker News · Front page at every check (lower is better).

#1#11#20#30 19:5421:0122:0923:1600:24 Nov 8, 19:54 UTC · #28Nov 8, 20:09 UTC · #24Nov 8, 20:24 UTC · #23Nov 8, 20:39 UTC · #19Nov 8, 20:54 UTC · #19Nov 8, 21:09 UTC · #15Nov 8, 21:24 UTC · #15Nov 8, 21:39 UTC · #15Nov 8, 21:54 UTC · #13Nov 8, 22:09 UTC · #13Nov 8, 22:24 UTC · #13Nov 8, 22:39 UTC · #11Nov 8, 22:54 UTC · #8Nov 8, 23:09 UTC · #8Nov 8, 23:24 UTC · #8Nov 8, 23:39 UTC · #9Nov 8, 23:54 UTC · #9Nov 9, 00:09 UTC · #9Nov 9, 00:24 UTC · #9

Last 14 days

Best rank per day (UTC).

Oct 27today

Metric history

points as reported by Hacker News.

070139211 19:5421:0122:0923:1600:24 Nov 8, 19:54 UTC · 15Nov 8, 20:09 UTC · 36Nov 8, 20:24 UTC · 49Nov 8, 20:39 UTC · 64Nov 8, 20:54 UTC · 74Nov 8, 21:09 UTC · 86Nov 8, 21:24 UTC · 97Nov 8, 21:39 UTC · 111Nov 8, 21:54 UTC · 119Nov 8, 22:09 UTC · 127Nov 8, 22:24 UTC · 137Nov 8, 22:39 UTC · 150Nov 8, 22:54 UTC · 163Nov 8, 23:09 UTC · 175Nov 8, 23:24 UTC · 182Nov 8, 23:39 UTC · 189Nov 8, 23:54 UTC · 193Nov 9, 00:09 UTC · 205Nov 9, 00:24 UTC · 211

From the discussion

A few top-level comments from Hacker News, shortened. Read the full thread on Hacker News.

I’ve been anticipating something like this for a while; the number of folks who don’t have their email-related DNS settings in order is remarkably high.

I thought they've been doing this for years, along with gmail/etc. I basically just added setting up the correct DNS records as part of business when sending emails externally.

I actually totally agree with this. There's too much risk involved with scams disguised as legitimate services because the developers of said service couldn't be bothered to add 1 or 2 dns records. Although there seems that there hasn't been any communication which is the bad thing here. However, nobody looks at…

Questions

Is Outlook.com Is Quietly Rejecting Email from Domains Without DMARC trending on Hacker News right now?

Yes. As of Nov 9, 00:24 UTC it is #9, slipping from #8 to #9 over the last 6 checks.

What is the highest rank Outlook.com Is Quietly Rejecting Email from Domains Without DMARC reached?

#8 on Hacker News · Front page, on Nov 8, 22:54 UTC. Trendoday checks this list every 15 minutes.

How long has Outlook.com Is Quietly Rejecting Email from Domains Without DMARC been trending?

It was first seen on Nov 8, 2026 and has been on the list on 2 days (19 checks) since.

How much discussion did it get on Hacker News?

22 points and 12 comments; submitted by xmddmx on Nov 8, 2026.