Microsoft Exchange and Active Directory Blog
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
Here is another small script from the Quick and Dirty series. The script was actually created to monitor an AntiSPAM gateway, which was often overloaded and no longer processed any mails. Unfortunately, "text-only" mails without hyperlinks or other content turned out not to be very meaningful, because they were practically always ... Read more
At the weekend there is a PowerShell script that can be used to test a domain for mail problems: The script returns the MX, PTR, SPF and DMARC entries of a domain and checks whether one of the IPs is on a blacklist. It also checks whether port 25 (SMTP) is accessible. The script is simply executed with ... Read more
In this article, I would like to focus less on the error analysis of mail problems and more on tools that provide a quick overview to determine the problem. First of all, there is the Microsoft Remote Connectivity Analyzer: https://testconnectivity.microsoft.com/ This service offered by Microsoft can be used to test ActiveSync, EWS, Autodiscover and Outlook Anywhere as well as SMTP. The website helps ... Read more
