Microsoft Exchange and Active Directory Blog
From 01.11.2021, at least Outlook 2013 SP1 is required for Microsoft 365. Previously, older Outlook versions usually worked with Microsoft 365 without any problems. From 01.11.2021, however, Microsoft will now block Outlook versions older than 2013 SP1 from being used and block these versions. Here is the corresponding article from Micorsoft: New ... 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
I have now received a lot of questions about Outlook on Windows 7 in conjunction with Exchange 2019. The error and solution have always been the same, so here is a short article about it. Outlook (regardless of the version) on Windows 7 cannot connect to Exchange Server 2019. Outlook then displays this message at startup ... 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
Updates have been released for Outlook 2013 and Outlook 2016 to close two critical security vulnerabilities. With both vulnerabilities, it is possible to execute malicious code on the computer. With one of the vulnerabilities, it is sufficient to receive an email with a malicious attachment. The attachment does not even have to be opened. The corresponding CVEs can be found here: CVE-2018-0852 | ... Read more
Sometimes you can't see the wood for the trees, in this case the following problem has led me onto the slippery slope. A user reports that although he can create items in a shared calendar of a colleague, he can no longer delete the entries. When trying to delete a calendar entry, Outlook only shows the following error message: The ... Read more
RPCoverHTTP, better known as Outlook Anywhere, was introduced with Exchange Server 2003. RPCoverHTTP is used to connect Outlook to Exchange Server without a VPN, but it was not always easy to realize or implement. Essentially, RPCoverHTTP tunnels the remote procedure calls via the http protocol to transport RPC over the Internet. The ... Read more
Thanks to Autodiscover, it is easy to set up Outlook profiles for Exchange Server. Users only have to click "Next" a few times and the corresponding profile is created. The following dialogs should therefore be familiar to most people: However, since no user interaction is required here in the case of Exchange Server and a correct Autodiscover configuration and ... Read more
Mit der Sophos UTM 9.2 WAF in Verbindung mit Exchange 2013 bin ich nicht richtig warm geworden. Meiner Meinung nach gab es dort zu viele Dinge die nicht wie ich erwartet hab funktionierten. Aber es gibt jetzt die Sophos UTM 9.3, also ist es Zeit für einen neuen Test. Die Umgebung ist fast unverändert: Es … Read more
Exchange functional or service mailboxes are often integrated into Outlook as an additional mailbox. Here in the example with the Info mailbox: As long as only one user has connected the mailbox, this is not a problem, but if several people access the Info mailbox and also send mails from the Info mailbox, a problem arises. Mails that ... Read more
