How to Collect Veeam ONE SMTP Logging

Collect SMTP Logging — Veeam ONE 12 or Higher

1. Create the following registry value on the machine where the Veeam ONE Reporting Service is running:
   
   Key Location: HKLM\SOFTWARE\Veeam\Veeam ONE
   Value Name: DetailedLogging
   Value Type: DWORD (32-Bit) Value
   Value Data: 1
   

PowerShell cmdlet to enable DetailedLogging:

2. Restart the Veeam ONE Reporting Service
   

PowerShell cmdlet to restart the Veeam ONE Reporting Service:

3. Trigger the email notification(s) to occur or wait for them to be sent (if scheduled).
   
4. Collect Veeam ONE Monitor logs as documented in KB1862
   ^{Email logging is written to: %ProgramData%\Veeam\Veeam ONE Reporter\Logs\Veeam.Reporter.Email.log}  
5. Disable SMTP Logging by changing the DetailedLogging value to 0.
   

PowerShell cmdlet to disable DetailedLogging:

6. Restart the Veeam ONE Reporting Service
   

PowerShell cmdlet to restart the Veeam ONE Reporting Service:

Collect SMTP Logging — Veeam ONE 11a or Lower

1. Create the following registry value on the machine where Veeam ONE Monitor Server is installed:
   
   Key Location: HKLM\SOFTWARE\Veeam\Veeam ONE Monitor\Service\
   Value Name: LogSmtpActivity
   Value Type: DWORD (32-Bit) Value
   Value Data: 1

PowerShell cmdlet to enable LogSmtpActivity:

2. Restart the Veeam ONE Monitoring Service
   

PowerShell cmdlet to restart the Veeam ONE Monitoring Service:

3. Trigger the email notification(s) to occur or wait for them to be sent (if scheduled).
4. Collect Veeam ONE Monitor logs as documented in KB1862
   ^{Each SMTP action is logged to an individual log file written to: %ProgramData%\Veeam\Veeam ONE Monitor\Logs\VeeamDCS-MailActivity-<YYYY_MM_DD_HH_MM_SS>.log}
5. Disable SMTP Logging by changing the LogSmtpActivity value back to 0.
   

PowerShell cmdlet to disable LogSmtpActivity:

6. Restart the Veeam ONE Monitoring Service
   

PowerShell cmdlet to restart the Veeam ONE Monitoring Service: