Exchange
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Blog
Microsoft pulls Exchange security updates over mail delivery issues
Microsoft has pulled the November 2024 Exchange security updates released during this month’s Patch Tuesday because of email delivery issues on servers using custom mail flow rules. The company announced it pulled the updates from Windows Update and the Download Center following widespread reports from admins saying that email had stopped flowing altogether. This issue affects customers using transport rules…
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Microsoft Exchange adds warning to emails abusing spoofing flaw
Microsoft has disclosed a high-severity Exchange Server vulnerability that allows attackers to forge legitimate senders on incoming emails and make malicious messages a lot more effective. The security flaw (CVE-2024-49040) impacts Exchange Server 2016 and 2019, and was discovered by Solidlab security researcher Vsevolod Kokorin, who reported it to Microsoft earlier this year. “The problem is that SMTP servers parse…
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Exchange Online adds Inbound DANE with DNSSEC for everyone
Microsoft announced today that inbound SMTP DANE with DNSSEC for Exchange Online, a new capability to boost email security and integrity, is now generally available. The company announced in September 2023 a public preview that would roll out from March to July 2024. However, it was forced to delay it because of “necessary security investments” identified during the Private Preview…
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How to Actually Understand What You’re Buying on the Healthcare Exchange
I’m convinced that the luckiest people in America are those who have a decent health insurance plan paid for by their employer—but just one, so there’s nothing to choose. For the rest of us, each November’s open enrollment period starts anew the painful process of choosing the least worst plan offered by your employer. But the worst pain is reserved…
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Exchange Online mistakenly tags emails as malware
Image: MidjourneyMicrosoft is investigating an Exchange Online false positive issue causing emails containing images to be wrongly tagged as malicious and sent to quarantine. “Users’ email messages containing images may be incorrectly flagged as malware and quarantined,” Microsoft said in a service alert posted on the Microsoft 365 admin center two hours ago. “We’re reviewing service monitoring telemetry to isolate…
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