Setup:
Hybrid Setup Exchange 2010 and Office 365
When migrating mailboxes in batches to office 365 using the Office 365 admin portal I had a couple of mailboxes fail when the mailbox status was completing. After about 20 minutes with mailboxes being stuck on completing. The following error appeared in the logs:
Error: SyncTimeoutException: Email migration failed for this user because no email could be downloaded
To resolve the issue with the mailboxes I deleted them from the batch and created a separate batch with the failed mailbox(s) and ran the migration again. This resolved the issue. When migrating mailboxes I found that migration them in batched of about 20-25 worked fine. When I had larger numbers or total emails for the batch exceeding 400-450k it seemed to cause issues. It could have just been coincidence but the smaller batches worked fine.
Office 365 Updates
- Administrative Template files (ADMX/ADML) and Office Customization Tool for Office 365 ProPlus, Office 2019, and Office 2016This download includes the Group Policy Administrative Template files (ADMX/ADML) for Office 365 ProPlus, Office 2019, and Office 2016 and also includes the OPAX/OPAL files for the Office Customization Tool (OCT) for Office 2016.
- Office Deployment ToolThe Office Deployment Tool (ODT) is a command-line tool that you can use to download and deploy Click-to-Run versions of Office, such as Office 365 ProPlus, to your client computers.
- Readiness Toolkit for Office add-ins and VBAThe Readiness Toolkit for Office add-ins and VBA helps you identify compatibility issues with your Microsoft Visual Basic for Applications (VBA) macros and your installed add-ins. Use this tool to inspect VBA macro code and get readiness information for installed Office add-ins.
Microsoft Security Updates
- Security Update For Exchange Server 2016 CU11 (KB4487563)Security Update For Exchange Server 2016 CU11 (KB4487563)
- Security Update For Exchange Server 2013 CU22 (KB4487563)Security Update For Exchange Server 2013 CU22 (KB4487563)
- Security Update For Exchange Server 2019 (KB4487563)Security Update For Exchange Server 2019 (KB4487563)
- Update Rollup 27 For Exchange 2010 SP3 (KB4491413)Update Rollup 27 For Exchange 2010 SP3 (KB4491413)
- Security Update For Exchange Server 2019 CU1 (KB4487563)Security Update For Exchange Server 2019 CU1 (KB4487563)
Cisco Security Advisories
- Cisco Wireless LAN Controller Software GUI Configuration Denial of Service VulnerabilitiesMultiple vulnerabilities in the administrative GUI configuration feature of Cisco Wireless LAN Controller (WLC) Software could allow an authenticated, remote attacker to cause the device to reload unexpectedly during device configuration when the administrator is using this GUI, causing a denial of service (DoS) condition on an affected device. The attacker would need to have valid […]
- SNMP Remote Code Execution Vulnerabilities in Cisco IOS and IOS XE SoftwareThe Simple Network Management Protocol (SNMP) subsystem of Cisco IOS and IOS XE Software contains multiple vulnerabilities that could allow an authenticated, remote attacker to remotely execute code on an affected system or cause an affected system to reload. An attacker could exploit these vulnerabilities by sending a crafted SNMP packet to an affected system via IPv4 […]
- Cisco IOS and IOS XE Software Cluster Management Protocol Remote Code Execution VulnerabilityA vulnerability in the Cisco Cluster Management Protocol (CMP) processing code in Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a reload of an affected device or remotely execute code with elevated privileges. The Cluster Management Protocol utilizes Telnet internally as a signaling and command protocol between cluster […]
- Cisco Identity Services Engine SSL Renegotiation Denial of Service VulnerabilityA vulnerability in the web interface of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to trigger high CPU usage, resulting in a denial of service (DoS) condition. The vulnerability is due to improper handling of Secure Sockets Layer (SSL) renegotiation requests. An attacker could exploit this vulnerability by sending renegotiation requests […]
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