Tag Archives: Outlook

Outlook: "external content is not allowed in secure email"

[German]Users of Outlook 2010 to 2016 may face the problem that they suddenly see the message “External content is not allowed in secure mail” when they access e-mail. It’s not a bug, it’s a feature – a couple of days … Continue reading

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Windows 10 V1607: Update KB4467684 kills Outlook search in Terminal Server

[German]End of November 2018 Microsoft released the update KB4467684 for Windows 10 V1607. Since then, there are more and more reports that this update killed the search in Outlook via Terminal Server.

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Bug in Outlook 365: Only one version can run at a time

[German]Users of Microsoft Outlook 365 may have been running into an issue since mid-July 2018 with version 1806 Build 10228.20080. When clicking on the Outlook icon of the taskbar error message is displayed, that only one version of the program … Continue reading

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An undocumented Office 365 REST api for Outlook activities

[German]It’s an interesting discovery for administrators. Microsoft Office 365 has an undocumented API that allows administrators to read the activities of Outlook email accounts.

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Outlook app shows birthdays one day too early

[German]Strange issue I recently recognized on Facebook. One MVP colleague complained that birthdays listed in Outlook app on his iPhone were displayed one day too early.

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Office 365: Zero-Font bypassing weakens email security

[German]Cyber criminals are currently using a well-known zero-font bypassing technology to trick Office 365’s Microsoft security filters on emails and smuggle spam onto systems.

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Update Outlook due to vulnerability CVE-2018-0950

[German]There is a serious vulnerability in Microsoft Outlook that can allow the stealing of access data or send the system into a BlueScreen loop. Microsoft has released a patchday update (April 10, 2018) to close the vulnerability.

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Microsoft retires Outlook Web App (Android/iOS)

[German]Microsoft has announced the retirement of Outlook Web App (OWA) for iPhone, iPad and Android. Since an Outlook app for iOS and Android devices is available, OWA will be retired in May 2018. What seems to be a minor thing, … Continue reading

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Fix: Outlook mail issue in KB4011089, KB4011090, KB4011091

[German]Users of Microsoft Outlook ran into a problem with archived emails after installing Microsoft’s September 2017 security updates. The problem has now been fixed.

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Outlook Sept. patch day bug reviews (iCloud, VB-Script…)

[German]Microsoft hasn’t been too successful with the latest updates for Outlook. Every update shipped for Outlook during the last months is causing issues. Since May 2017, one patch after the other has been causing problems. Here is the attempt to … Continue reading

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