Microsoft Exchange and Active Directory Blog
Yesterday, security updates were released for Exchange Server 2016 and Exchange Server 2019. In connection with Outlook and Exchange Server 2019, there are now increasing reports of problems with the search. Admins are reporting problems on the Exchange Team Blog and in the comments to my post. The search apparently produces the error message ... Read more
The Outlook vulnerability CVE-2023-23397 is currently being actively exploited. This is particularly critical as exploitation is possible without user interaction. By exploiting the vulnerability, attackers can obtain NTLM hashes of the user and possibly use them for subsequent attacks. To exploit the vulnerability, it is sufficient to send a prepared e-mail or a calendar invitation to the user ... Read more
Two Outlook Autodiscover settings, which are active in the default setting, often cause problems when setting up Outlook accounts. In the default setting, Outlook always tries to retrieve Autodiscover settings from Microsoft 365, which often leads to problems with on-prem Exchange servers. Outlook also tries to retrieve the Autodiscover settings from the root domain ... Read more
Today my Office programs would no longer start. Apparently a previous update went wrong. When starting Outlook and all other Office programs, the message "Office is being updated. Please wait a moment": After a short wait, the following error message appears, none of the Office programs start: The system event log shows the ... Read more
Who isn't familiar with the evil "Reply all" function in Outlook? An important piece of information is quickly sent to the whole company, and then there's a flood of replies because the recipients use the "reply all" function: Depending on the size of the organization, such a flood of emails can generate a few million emails and thus ... Read more
On March 17, 2018, I drew attention to an idea by Jeff Guillet. The idea is about saving email signatures as part of the Exchange mailbox so that a uniform signature is possible on all devices. Up to now, the Outlook e-mail signature has been saved in the user profile of the respective client. The idea of ... Read more
This short article is intended to list the most common causes of problems with the Outlook connection to Exchange during migration. Connection problems often occur after a mailbox has been moved to a newer Exchange version. Outlook then often displays one of the following messages: The Microsoft Exchange administrator has made a change that requires Outlook to be restarted. ... Read more
Microsoft has released the first preview of Office 2019 and therefore also Outlook 2019. The preview is public and can be downloaded with an Office 365 account, for example. To test the preview, you can first register for the Collaborate Program here: https://developer.microsoft.com/en-us/dashboard/collaborate/ The Office 2019 preview can then be downloaded under the "Engagements" ... Read more
A new Exchange Server version was already announced at Ignite in Orlando, but Office will also be available in a new version in 2018. In most cases, Office will even be released a little earlier than Exchange 2019. This means that a few major migration projects are likely to start next year. Today, at Microsoft Ignite in Orlando, we announced Office 2019-the next perpetual ... Read more
