Tag Archives: Mail

Email bombing: A new spam campaign? Or a cover-up for a (black basta) attack?

[German]A German blog reader recently shared an observation from his IT department with me. An employee was bombed by a veritable wave of spam  mail (more than 1,000/hour). All the emails had some kind of confirmation for a registration, which … Continue reading

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Windows: Mail app will no longer work from December 31, 2024

[German]Brief information for users of Windows 10 (and possibly Windows 11) who are still using the "Mail and Calendar" app as their email client. Microsoft has started the transition to the new Outlook app. Anyone holding on to the old … Continue reading

Posted in General, Office, Software | Tagged , , , , | 1 Comment

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

Posted in Cloud, Security, Software | Tagged , , | 1 Comment

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

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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

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Why ISL Online: Critical factors when choosing a remote desktop solution

[Sponsored Post]In the rapidly evolving IT world, choosing the right remote desktop software is critical for organizations that value security, ease of use and reliability. One provider of secure remote access that has been on the market since 2001 is ISL Online, which presents some considerations for choosing such software below. More ...


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

Posted in Cloud, issue | Tagged , , | 1 Comment

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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

Posted in issue, Office | Tagged , , , , | 3 Comments

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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

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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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