Microsoft Exchange and Active Directory Blog
As a side note, new limits will be introduced in Exchange Online and therefore also in Office 365 from 01.06.2018. Specifically, these are new limits for authenticated SMTP connections (SMTP Authenticated submission): Sent mails will be saved in the "Sent items" folder of the mailbox Only three simultaneous connections per mailbox are now permitted Depending on the configuration ... Read more
I have now received a lot of inquiries about Exchange and hybrid mode with Office 365. I have therefore decided to focus more on the topic of Office 365 in conjunction with local Exchange servers in the future. Here is the first article on Exchange 2016 in conjunction with Office 365 and hybrid mode. In ... Read more
Microsoft released the "Windows Admin Center" today. Most people are probably familiar with the "Windows Admin Center" under the code name "Project Honolulu". Now the official name has also been decided. The Windows Admin Center is a web-based application for the administration of Windows servers. In this article I had the preview ... Read more
The following mail reached me a few days ago and I think the solution could also help others. It concerns a single Exchange 2016 server on Windows Server 2012 R2. Here is an excerpt of the problem from the email: But now I'm at the end of my tether and wanted to find out if ... Read more
I have now received several emails regarding the migration of domain controllers that are still running an older operating system. Most of the emails are about retaining the IP address of the original domain controller. The environments described in the e-mails were all similar, only the operating system on which the original domain controller was running ... Read more
The SMTP protocol is getting a bit long in the tooth and has often been declared dead, but now it seems to have been dealt its death blow. Exchange 2019 will no longer support SMTP. MAPIoverHTTP and EWS are waiting in the wings as successors. The SMTP protocol for exchanging emails has been around since 1982, so it is only ... Read more
Due to the fact that many of my colleagues have very isolated buildings and mobile phone reception within our offices is more bad than good, it was necessary to look into Vodafone WiFi calling in conjunction with Sophos UTM 9. Vodafone does not use classic SIP as you might think at first. Instead, the UDP ports 500 ... Read more
I have had the following problem several times and have fallen for it again. I would therefore like to briefly describe the problem: The Exchange Management Shell of an Exchange 2016 server no longer wanted to connect and only showed errors. It was also no longer possible to log in using ECA. This problem is already quite ... Read more
Sophos has released a new update for Sophos UTM today. The update is for version 9.508-10 and upgrades the version to 9.509-3. The update fixes these three issues: [NUTM-9619]: [Email] CVE-2018-6789: buffer overflow in base64d function in SMTP listener [NUTM-9698]: [Network] After upgrade to 9.508 in VPC IPsec BGP status shows "state error" ... Read more
The first public preview of Windows Server 2019 has been available for download since the day before yesterday. I had already installed it and started playing around with it. Here is a first vague preview of the new features of Windows Server 2019. Hybrid Cloud One of the main focuses of Windows Server 2019 is the hybrid cloud and ... Read more
