[EXO] The client and server cannot communicate, because they do not possess a common algorithm

Windows Server 2008 can’t do beyond TLS 1.0. Newer versions can, but don’t have TLS 1.1 or 1.2 turned on by default. Best pratice to disable 1.0, 1.1 – mostly depreciated and not supported Check supported protocols: https://www.ssllabs.com/ssltest/index.html Turn off TLS 1.0.1.1 and SSL

Enabling TLS 1.2 Use

 

[EXO][EX2010] Removing dual mailboxes

Ensure you have a user mailbox backup prior to starting the following process as there is potential risk of data loss.  Options are to have a third party solution to perform a mailbox backup or export to PST (see new-mailboxexport cmdlet). Capture relevant information from on-premise exchange and exchange online. Grab the mailbox information (primary   →

[EX2010][EXO] Forwarding Address Export and Import

 

Single mailbox export to PST file

Add member of a role group which has the Mailbox Import Export role

Export primary mailbox:

  Export archive mailbox:

  More details https://docs.microsoft.com/en-us/powershell/module/exchange/mailboxes/New-MailboxExportRequest?redirectedfrom=MSDN&view=exchange-ps

Exam MS-200: Planning and Configuring a Messaging Platform – Skills Measured

Exam MS-200: Planning and Configuring a Messaging Platform – Skills Measured Manage modern messaging infrastructure (45-50%) Manage databases • plan mailbox database requirements • create mailbox databases • configure mailbox databases • troubleshoot mailbox databases Manage Database Availability Groups (DAGs) • plan DAG settings and members • create a DAG • manage DAG members •   →

[MS-200] Exchange System Requirements

Supported co-existence for Exchange 2019 Exchange 2010, not supported Exchange 2013, supported with 2013 CU21 or later, including Edge Transport Servers Exchange 2016, Supported with 2016 CU11 or later, including Edge Transport Servers Mixed 2013 and 2016, Supported if 2013 and 2016 meeting previous requirements Network and directory server requirements for Exchange 2019 Domain Controller,   →

[MS-200] Overview

MS-200 Study Guide. Manage Modern Messaging Infrastructure (45-50%) Manage databases May include but not limited to: Plan mailbox database requirements, create mailbox databases, configure mailbox databases, troubleshoot mailbox databases https://docs.microsoft.com/en-us/exchange/architecture/mailbox-servers/manage-databases?view=exchserver-2019 Manage Database Availability Groups (DAGs) May include but not limited to: Plan DAG settings and members, create a DAG, manage DAG members, deploy and manage site resilience, test a database and datacenter   →

[PS][EX2010] E-mails Recieved per day of Month Report

.Synopsis E-mail Counting Script v1 by ELAU 10/10/19 – Script counts emails received for each day of the current month .DESCRIPTION – Script pulls days of the month and counts number of emails received for each day of the current month or days specified into a HTML report. – Script allows option to e-mail report   →

[PS] [EX2010] Recoverable Folder Size Report

Recoverable Folder Size Report v1 Crawls all mailboxes and pulls the recoverableitemsquota size Displays top 10 in HTML report Full CSV report is generated E-mails report with full report

 

[EXCH] Event ID: 9646 User exceeded the maximum of 500 objects of type “objtFolder”.

Shared mailboxes setup in cache mode will download entire content of the mailbox and will register every folder in each cached mailbox toward the objtFolder type limit on the server that’s running Exchange Server. By default, objtFolder limit is set to 500 per-mailbox limit.  Once the limit is exhausted, user will start experiencing the symptoms   →