Microsoft Exchange and Active Directory Blog
Microsoft has released a new security update for Exchange Server 2013 to 2019 (CVE-2019-1373). The update closes a vulnerability that, in the worst-case scenario, could allow code to be executed remotely. Microsoft classifies the severity of the vulnerability as critical. The update should therefore be installed as soon as possible. Microsoft provides the following details on ... Read more
There is currently another error in Exchange 2016 that also occurred in Exchange 2010. If you run Outlook in cached mode, as Microsoft recommends, and want to move a folder to a subfolder in which a folder with the same name already exists, it is renamed, e.g. from test folder to test folder(2). This ... Read more
Here's another little problem I stumbled across today. During the migration from Exchange 2010 to Exchange 2016, a user was no longer able to receive emails from external senders (SenderNotAuthenticatedForMailbox) after the spam filters were switched to the Exchange 2016 servers. This problem only occurred when the mail routing was switched to the Exchange 2016 ... Read more
Microsoft Ignite 2019 started today in Orlando. There aren't quite as many exciting Exchange-related topics at the Microsoft conference this time. Exchange 2019 was already announced last year, but this year there is no new Exchange version, so Exchange is probably only a topic in a few sessions this year. Perhaps ... Read more
I have just uploaded version 3.6 of the Exchange Reporter. Exchange Reporter 3.6 includes the new module "NoSpamProxy". This means that Exchange Reporter can now also retrieve statistics from NoSpamProxy and display them in the report. Here is an example of the NSP module: The NoSpamProxy module displays the following statistics: Overview of mail statistics Overview of large files ... Read more
Small warning regarding Apple devices and iOS 13. Apparently an old bug from iOS 6 times has returned and is causing trouble again in iOS 13. I warned about the problem "back then" here: Exchange 2007/2010: ActiveSync and iOS 6 bug With Apple iOS 13, too, there are more and more reports that there are ... Read more
There are already many forums that deal with Exchange Server, but why shouldn't there be a small one? The forum on this page is intended to facilitate the discussion of my articles and of course give you readers the opportunity to ask questions. I receive many mails from readers with questions or problems around ... Read more
Since I started using NoSpamProxy as a spam filter and S/MIME gateway at the beginning of the year, I also created a corresponding PRTG sensor for the most important values. With the PRTG PowerShell Sensor, NoSpamProxy can be monitored quite effectively. If anyone can also use the script, it can be downloaded here: The script must then be installed in ... Read more
Sophos has released a new update for the UTM. The update has the version number 9.700-5 and includes the following new features: Support for new APX AccessPoints Certificate Chain support for WebAdmin and UserPortal Certificate Chain Support for WebProxy New RED Site 2 Site Protocol Retirement of UTM Endpoint Management In addition, the following issues have been ... Read more
Some time ago I had already pointed out the following error, here in connection with Exchange 2013: Exchange 2013: 451 4.7.0 Temporary server error. Please try again later. PRX2 If emails cannot be delivered and Exchange displays the error "451 4.7.0 Temporary server error. Please try again later. PRX2" in the queues, it is possible that ... Read more
