Microsoft Exchange and Active Directory Blog
I stumbled across an interesting workaround for Sophos UTM and Let's Encrypt certificates today: https://github.com/rklomp/sophos-utm-letsencrypt René has taken the trouble to create a script that can automatically renew Let's Encrypt certificates on Sophos UTM. The implementation is relatively simple and worked right away in my test environment. Since the ... Read more
At the end of last year, I had already written an article on the topic of RPCoverHTTP, better known as Outlook Anywhere: Exchange 2016: Is RPCoverHTTP still needed? I therefore switched off Outlook Anywhere in my environment in December 2016. I have not encountered any problems so far. Outlook 2016 works perfectly with MAPIoverHTTP. So now that over two ... Read more
Another update for Sophos UTM was released today, which is supposed to fix the problems with the last update. Even though I was not affected by the last problems, there always seems to be an increased reason for caution with updates for the UTM. I have therefore taken another snapshot of my UTM VM ... Read more
An update for Sophos UTM was released today. This is a maintenance release, so it fixes known problems. Especially for the Mail Protection it concerns these problems: Fix [NUTM-3515]: [Email] [SPX] Using 'ß' and ',' as windows-1252 in form breaks utf-8 conversion Fix [NUTM-4932]: [Email] Password protected file passes SMTP ... Read more
Foreword IPv6 has not been one of my strengths so far. Like many others, I've probably put the topic of IPv6 on the back burner: "I'll take a look at it when it's established..." Well, it has become established and has been for some time. IPv4 will be replaced by IPv6, that much is certain. Therefore ... Read more
Outlook informed me today that it would like to install updates: However, after clicking on "Update now", only the following message was displayed: Sorry, that didn't work. Unfortunately, Office could not be installed. Please make sure that you have an Internet connection and then try the installation again. Error code: 30180-26 The Windows ... Read more
Today a new update for Sophos UTM was released, actually there are two updates: The two updates can be downloaded here: http://ftp.astaro.de/UTM/v9/up2date/ Here are the release notes: Fix [NUTM-2392]: [AWS] Allow the user to select the security group to port during conversion Fix [NUTM-5327]: [AWS] Confd object missing after instance recovery in HA ... Read more
Just a small warning about the Sophos UTM update 9.408. This update causes several problems. If you run the UTM as a virtual machine on VMware ESXi, it is better not to install the update and wait. The update 9.408 mixes up the assignment of the virtual network cards, this was already a problem when in previous versions ... Read more
Sophos UTM Email Protection contains a bug where recipient verification is simply skipped. In the case of recipient verification via Active Directory and the query via SSL, no verification of the recipients takes place. Here are the problematic settings: Recipient verification via Active Directory Query of the Active Directory with SSL In the live log of Email Protection ... Read more
In one of the last articles, I already described how to set up reverse authentication for Sophos UTM. The reverse authentication switches a separate login page in front of the Exchange server (similar to Forefront TMG). Unfortunately, the design of the login page of the UTM is not particularly pretty, in my opinion, ... Read more
