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Tag Archives: Mail
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
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
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
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
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 ...
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
Thunderbird 115: Suddenly refuse to sync mMails from outlook.com
[German]Brief information for Thunderbird users, who observe the mail client suddenly can't sync mails from Microsoft accounts (hotmail.com or outlook.com etc.). A manual intervention is necessary, where JavaScript has to be activated and then the authentication of the Microsoft accounts … Continue reading
Windows 10/11 Mail app can Exchange ActiveSync
[German]Small addendum that Thomas B. already pointed out to me in Sept. 2022. It is about the possibility to access Exchange mailboxes with ActiveSync by means of the app delivered in Windows 10 and Windows 11.
Warning: Phishing Mail from "Microsoft" suggesting a password change
[German]Warning regarding a new phishing campaign that a blog reader alerted me to via email today (October 17, 2022). The mail apparently comes from Microsoft and claims that the password for the email account has been changed. If one had … Continue reading
Barracuda Networks: Spam filter/virus scan blocks mails globally (September 29, 2022)
[German]Brief notification for administrators who use a mail protection / security solution from Barracuda Networks in an enterprise environment. Since tonight (September 29, 2022) there seems to be a problem that emails get stuck in their spam filters (Email Security … Continue reading