Microsoft cracks down on bulk email with strict new Outlook rules

Quick Summary:

Until now, questionable messages might have ended up in junk or spam folders.

DKIM must sign the message with a valid key.

While that is appreciated, it will unfortunately also impact marketers, newsletter publishers, and businesses that rely on mass email.

---

More Pictures

---

Read Quick SummarySave Time

or

Article Details

Author / Journalist: Brian Fagioli

Category: Technology

Markets: United States

Topics: Hotmail Microsoft Email authentication SPF DKIM Email blocking Article DMARC Bulk email Live.com Outlook

Source Website Secure: Yes (HTTPS)

News Sentiment: Neutral

Fact Checked: Legitimate

Article Type: News Report

Published On: 2025-05-05 @ 18:05:17 (12 hours ago)

News Timezone: GMT +8:00

News Source URL: betanews.com

Language: English

Article Length: 339 words

Reading Time: 2 minutes read

Sentences: 22 lines

Sentence Length: 16 words per sentence (average)

Platforms: Desktop Web, Mobile Web, iOS App, Android App

Copyright Owner: © BetaNews

News ID: 28413372

View Article Analysis

About BetaNews

Main Topics: Technology

Official Website: betanews.com

Update Frequency: 5 posts per day

Year Established: 1992

Headquarters: United States

News Last Updated: 21 hours ago

Coverage Areas: United States

Ownership: Independent Company

Publication Timezone: GMT +8:00

Content Availability: Worldwide

News Language: English

RSS Feed: Available (XML)

API Access: Available (JSON, REST)

Website Security: Secure (HTTPS)

Publisher ID: #58

Publisher Details

Frequently Asked Questions