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- Rob Gibson on Password spraying attacks on (Sophos) firewalls from IP 92.53.65.166
- DJ on Citrix and Amazon AWS Workspace App: Issues with Intel XE graphics chips
- Anonymous on Office 365 Version 2408: Issues with Access when accessing a SQL database
- Andre_K on Microsoft 365: Login error 700003
- EP on Review of HP Probooks 445 G7 and 455 G7 bricked with BIOS update
Recent Comments
- Rob Gibson on Password spraying attacks on (Sophos) firewalls from IP 92.53.65.166
- DJ on Citrix and Amazon AWS Workspace App: Issues with Intel XE graphics chips
- Anonymous on Office 365 Version 2408: Issues with Access when accessing a SQL database
- Andre_K on Microsoft 365: Login error 700003
- EP on Review of HP Probooks 445 G7 and 455 G7 bricked with BIOS update
Tag Archives: Mail
HornetSecurity quarantines Microsoft Exchange emails (July 2, 2024)
[German]A information to the administrators among the blog readership who use HornetSecurity to filter mails (e.g. in Microsoft Exchange). A reader informed me that the mails in question (for Exchange) have been quarantined. On the HornetSecurity status page there is … Continue reading
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Spoofing vulnerability allows emails to be sent under Microsoft's name
[German]An unpleasant story: There is a vulnerability in Microsoft's email services that allows third parties to send emails on behalf of Microsoft. As far as I know, Microsoft has confirmed this bug, but has not yet patched it. This means … Continue reading
Microsoft will better secure private Outlook mail accounts
[German]A few days ago, Microsoft made an announcement that it wants to better secure "Outlook for private users" in future. The mention of Outlook is a bit of a misnomer. The aim is to improve the security of online e-mail … Continue reading
Hornetsecurity is down (June 7, 2024; since ~ 7:00 a.m.)
[German]German blog reader Jona contacted me a few minutes ago and asked, whether I know anything about a malfunction at "Hornet-Security". In the meantime, there is a second report from Matthias about a service disruption. But it looks as if … Continue reading
Exchange Online: Microsoft confirms outgoing emails are rejected as spam (March 2024)
[German]Microsoft has a problem with its Exchange Online instances that can easily sideline its customers. The sender domains for emails are classified as spam and rejected. This means that companies can no longer send mail. After I discussed this several … Continue reading
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Outlook and other apps cannot connect to Outlook.com
[German]Microsoft is investigating a problem in which Outlook and probably other apps or applications are unable to connect to outlook.com or sporadic connect errors occur. It affects mail clients that want to access Microsoft mailboxes via POP or IMAP and … Continue reading
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How Midnight Blizzard hackers were able to penetrate Microsoft's email system
[German]It was recently revealed that hackers from the state-run group Midnight Blizzard Hackers were able to penetrate Microsoft's email system and read messages from executives or security experts. The hackers had been in the system for months. Microsoft has now … Continue reading
Microsoft hacked by Russian Midnight Blizzard; emails exfiltrated since Nov. 2023
[German]Microsoft has been successfully hacked by the Russian state hacker group Midnight Blizzard, also known as Nobelium. This was noticed on January 12, 2024, but the hackers were probably in the systems for months and were able to view and … Continue reading
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Microsoft IP addresses landed on blacklists (Jan. 2023)
[German]Brief note to the my readers, perhaps someone has observed something similar with customers or within its enterprise environments. It seems that some IP addresses that can be assigned to Microsoft mail servers have ended up on blacklists. It may … Continue reading
Massive spam wave from outlook.com to office.com accounts
[German]A German blog reader contacted me a few hours ago because he noticed an extreme amount of spam from certain Microsoft outlook.com email accounts to his Microsoft Office office.com email account. After publishing the German edition of this blog post, … Continue reading