Useful email tools

Microsoft Remote Connectivity Analyzer

Wormly SMTP Test

MXToolbox

Mail Tester

sender base

Issue solved: Exchange security alert: SSL name vs. internal server name
Follow these steps

Set RAM limit to SBS internal database

Open SQL Server Management Studio

Connect to server name:
\\.\pipe\mssql$microsoft##ssee\sql\query

Right click the root node, click Properties
Click Memory
Change the value of Maximum server memory (in MB)

Veeam backup failure

Error during VeeamZip backup attempt: "An error occurred while saving the snapshot: failed to quiesce the virtual machine"

Some of the VMware KB suggestions include:

2069952
2034002

But, the virtual disk service suggestion didn't help, and the other suggestion requires a reboot, which was not possible in my situation.

The solution I found was to modify the VMware tools installation to REMOVE the VMware tools' VSS option.