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ENow Software blog

Jaap Wesselius

Jaap Wesselius
Jaap is a Microsoft MVP for Office Apps and Services. Jaap is an independent consultant, primarily focusing on Exchange server, Skype for Business and Office 365.

Recent Posts

20
Oct

Exchange Quarterly Updates, September 2021

On September 28, Microsoft released their quarterly updates for Exchange Server:   Exchange Server 2019 Cumulative Update 11 Exchange Server 2016 Cumulative Update 22 In contrast...
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29
Sep

Autodiscover Vulnerability FUD or Not?

Social media exploded when an ISV who specializes in security released a blogpost about a vulnerability they found in Autodiscover, the protocol that is used by mailclients to...
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06
Aug

How to Prevent Users from Using Weak Passwords

Previously, MVP Nicolas Blank wrote an interesting article "Having an Identity Crisis" and it talked about all kinds of attacks on your environment. One such attack is on user...
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14
Apr

URGENT: April 2021 Exchange Security Updates

With the HAFNIUM experience still fresh in mind, we are a bit worried about other vulnerabilities and security updates for Exchange. The last two weeks there were rumors about new...
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08
Apr

TLS Changes in Office 365

By now you must have heard that Microsoft is moving away from basic authentication and that all client authentications will move to modern authentication. I blogged about this...
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03
Mar

URGENT: Zero Day Vulnerabilities for Exchange Server

On March 2, 2021 Microsoft released a number of critical security updates for Exchange. These are not just a number of new Security Updates, but these are Security Updates for a...
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17
Feb

Office 365 Basic Authentication Update

Almost a year ago, in March 2020, I wrote an article called Microsoft stops basic authentication, now what on this site about Microsoft’s plan to decommission Basic Authentication...
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21
Oct

Exchange Server - Past, Present, and Future

By the end of 2020, a couple of interesting things regarding Exchange server are going on. The first one we've know about for a long time, is the end of support for Exchange 2010...
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08
Jul

Decommissioning Your Last Exchange Server

Decommissioning the last Exchange server When you are in an Exchange hybrid configuration and you have migrated the last Mailbox to Office 365, you might wonder what to do with...
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03
Jun

Exchange on-premises and Microsoft Teams

Exchange on-premises and Microsoft Teams With the work from home going on due to the COVID-19 crisis there’s an increasing demand for tools like Zoom, Skype for Business and...
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