Exchange 2019 SMTP Relay Services
In this article, Jaap Wesselius explains two ways of creating a Receive Connector for SMTP relay purposes. It is up to your organization to decide which option best fits your needs.
June 28, 2023
Latest Articles
How to Install Exchange Server 2019 Cumulative Updates
In this blog, Steve Goodman discusses how to correctly patch your Exchange Server 2019 environment, apply Cumulative Updates without loss of service, and understand how new features in CU13 help with simplifying the upgrade process.
June 7, 2023
Journaling in Exchange
Join Andres Bohren as he dives into Journaling in Exchange, explaining how it works and how to set it up in Exchange Online & On-premises.
June 5, 2023
Exchange 2019 Mail Flow and Transport Services
In this article, Jaap Wesselius deep dives into SMTP transport services and the default receive connectors within Exchange 2019.
May 29, 2023
Exchange Server 2019 Gains Support for Modern Authentication
After seemingly ignoring the situation for years, Microsoft delivered modern authentication for Exchange Server (for pure on-premises organizations) in Exchange 2019 CU13. The solution uses ADFS to issue and manage the OAuth 2.0 tokens and is supported by the latest version of Outlook for Windows. Support for other clients is in the works.
May 4, 2023
Using PowerShell to Get Exchange Mailbox Database Size and Available New Mailbox Space
Unfortunately, Exchange mailbox databases don’t shrink, and the last thing you want is your server running out of disk space. In this blog, we explore how to monitor your Exchange mailbox database size and available new mailbox space through PowerShell.
April 17, 2023
Microsoft’s Grand Plan to Force Upgrades of Unsupported Exchange Servers
Microsoft announced that Exchange Online will block old Exchange Servers by throttling and then rejecting their inbound email into Exchange Online. The hope is that this tactic will convince those who operate unsupported versions of Exchange Server to upgrade and use supported software that isn't vulnerable to known attack vectors.
March 23, 2023
Outlook Elevation of Privilege Vulnerability Leaks Credentials via NTLM
Among the latest set of patches released by Microsoft, a fix for CVE-2023-23397 is available to fix an NTLM vulnerability in Outlook for Windows clients. The update closes a hole where attackers can use specially formatted messages to force NTLM credentials to be sent outside the organization.
March 15, 2023
Free/Busy Sharing with Multiple Exchange Servers and Microsoft 365 Tenants
My team has recently worked on some projects featuring multi-tenant and multi-Exchange environments. A common requirement for all projects is the ability to share free/busy information across all environments. In this article, I will dive into using free/busy sharing with Exchange/Microsoft 365 in the worldwide cloud. Sharing Free/Busy Information Let’s start with the obvious issues: […]
March 6, 2023
What Now for Exchange 2013 Customers as End of Support Deadline Looms?
Exchange 2013 support ends on April 11, 2023. After that, Microsoft will not make fixes for security or functionality problems available to customers. It's time to make the decision to upgrade to Exchange 2019 or move to Exchange Online. Most organizations will find that Exchange Online is the right choice. Exchange 2019 is appropriate for organizations that have the right skills, experience, and investment to run a secure Exchange service.
January 30, 2023
What We Can Learn from the Rackspace Breach
In early December 2022, Rackspace had a major breach in their exchange environment that led to customers' mail data being stolen. This article explains what happened and what can be learned from this incident.
January 19, 2023
A trio of Security Bugs in Exchange and New Azure AD sync features: Practical 365 Podcast S3 E19
In this week's Practical 365 Podcast, Steve and Paul Discuss new security updates for Exchange Server, what you should do if you are still on Exchange Server 2013, Azure AD Cross Tenant Sync arrives in the roadmap for imminent release, and much more!
January 18, 2023