Microsoft Exchange and Active Directory Blog
Today Sophos released an update for the UTM 9. The update updates the UTM to version 9.508-10. The update is just under 170 MB in size and is intended to fix these problems: [NUTM-8739]: [Access & Identity] Argos segfault and coredump after update to v9.502 [NUTM-9164]: [Access & Identity] SSLVPN installation packages fail to copy user profile during ... Read more
I have started to revise the "Exchange Certificate Assistant". The previous version is no longer compatible with the current ACMESharp module and therefore requires an old version of the module. However, since some relevant parts of the ACMESharp module have changed in the meantime, it is time for a new version of the "Exchange Certificate Assistant". I have updated the "Certificate ... Read more
I have now received a number of inquiries asking how several companies can share an Active Directory. The last inquiry was about a company that had bought out another company. The companies should now share the infrastructure. In the standard setting of an Active Directory, however, all users ... 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
Anyone using Exchange 2016 in conjunction with a wildcard certificate should also configure the receive and send connectors accordingly. This may also be necessary for SAN certificates. If the SAN certificate contains the domain name as the "Common Name (issued for)" and not the corresponding server name of the Exchange server, problems may occur, for example, when encrypting the SMTP connection using STARTTLS. ... Read more
DKIM, also known as DomainKeys, is a procedure for determining the authenticity of emails. The basic functionality is explained quite simply: The sending mail server calculates a hash value for each mail it sends and appends this hash to each mail in the e-mail header. The receiving mail server can evaluate the signature and also determine the ... Read more
If Outlook cannot download the Offline Address Book (OAB) from an Exchange 2016 server, the following error message is displayed: Error (0x8004010F) while performing the task: Error during operation. An object cannot be found. Unfortunately, this error message is quite general and can be caused by various problems. The cause of the error was in this ... Read more
The Austrian company Proxmox has published the spam filter "Mail Gateway" as open source under the GNU AGPL v3 license. This means that the spam filter can be used free of charge. I've been looking for a SPAM filter for test environments for a while now, so I'm taking a closer look at the Proxmox solution. Here is an overview of the ... Read more
I have just uploaded an updated version of the "Exchange Autodiscover Whitepaper". Since the behavior of Outlook 2016 in connection with Autodiscover has changed somewhat in November 2017, I have adapted the whitepaper accordingly. Outlook now prefers Autodiscover in conjunction with Office 365, which leads to problems if the user has an Office 365 account. Read more
The first meeting of the Exchange User Group OWL (EUGO) in 2018 will take place on March 2, 2018 as usual at the Allegro Habichtshöhe restaurant in Bielefeld. Everyone who is interested in talking shop about current Microsoft technologies and topics in a relaxed atmosphere is cordially invited. We do not have a fixed agenda on the program, as usual we do not want to ... Read more
