Happy New Year and welcome to 2022! On-prem Exchange 2016 and 2019 anti-malware issue! Mail flowing through on-prem Exchange will have the majority (if not all) messages queued with this… “Last Error: Message deferred by categorizer agent” Though it is stated that this issue started around midnight local times on Sat 1 Jan 2022, messages…
Azure / Office / Office 365
If you work as an M365 admin for a multi-national company you may get requests from users to change the default language that displays in Office.com and the Office desktop client based on the region they are in. Office.com For cloud-only users, the change can be made through the user’s Office.com Language & Region setting…
As I am working toward decommissioning Exchange 2010, someone who has a mailbox in Exchange Online (EXO) was having an issue with staying connected to an on premises shared mailbox using Outlook. I proposed moving it to EXO to address the issue. While onboarding the mailbox to EXO, the move gave me an error that…
The following, run from an elevated command prompt, will securely erase the free space from a hard drive running Windows 7 and newer causing the data to be safe from recovery… cipher /w:X SDelete (secure delete) from the Sysinternals suite can also be utilized to accomplish the same task… sdelete -p 7 -z X:…
Ever needed to clear all events from each of the 1100+ Event Viewer logs on a Windows workstation? From an elevated PowerShell console, run the following script to clear the event logs in Event Viewer… wevtutil el | Foreach-Object {wevtutil cl “$_”} Good luck.
The following is a list of attributes I tracked that change for an AD user when their associated mailbox is moved (via hybrid) to Exchange Online… homeMDB legacyExchangeDN mDBUseDefaults mS-DS-ConsistencyGuid msDS-ExternalDirectoryObjectId msExchCalendarLoggingQuota msExchELCMailboxFlags msExchHomeServerName msExchMailboxSecurityDescriptor msExchRBACPolicyLink msExchRecipientDisplayType msExchRecipientTypeDetails msExchRemoteRecipientType msExchUserCulture proxyAddresses targetAddress uSNChanged Reference(s)… https://blogs.technet.microsoft.com/dkegg/2014/08/27/ad-attributes-that-are-changed-when-a-mailbox-moves-to-office-365/ https://docs.microsoft.com/en-us/azure/active-directory/connect/active-directory-aadconnectsync-attributes-synchronized Report Comment
After configuring hybrid for an Exchange 2010 environment, I tested mail flow from a on premise mailbox to an Exchange Online mailbox. However, the messages were queuing with the ‘451 4.4.0 DNS Query Failed’ message. The traditional resolution is to set the “Outbound to Office 365” send connector to “Use the External DNS Lookup settings on…
While attempting to update to the latest CU for Exchange 2016 (on a Windows 2016 server), the process failed several times with an error (‘Cannot start service MSExchangeServiceHost on computer’) and I could not understand why. I still don’t understand why, but I did find a workaround that I felt important to share. During the…
Be advised of the following issue you may experience when working to migrate from on premises Exchange environment to Exchange Online and are planning to build an Exchange 2013 or 2016 server for the hybrid configuration. I had an experience very recently during a customer project where several attempts were made to acquire an Exchange hybrid product key and…
Many support tools are available in the link below to analyze, configure, and troubleshoot aspects of Exchange (and other workloads). Also, seems to require an Office 365 login. https://configure.office.com/ (Not sure how long this link has not been working.) https://config.office.com/ (It appears that several tools have been removed, including the section for Exchange, and is…
ODDYTEE 