how to change PMG system sender address

[lynn.wu]

The picture as shown below is the PMG's Daily Spam Report maillog, as the title, how can I change the null sender address to physical address?
Thanks!

 

[dietmar]

See Configuration/SpamDetector/Quarantine/EmailFrom setting.

 

[lynn.wu]

Hi, dietmar, I used this setting,but it's not work....

 

[dietmar]

This option changes the email "From" header. It is not possible to change the "envelope-sender", because that would send all bounces to the specified address. Why do you want to change the 'envelope-sender' (instead of the 'From' field)?

 

[lynn.wu]

I use this setting! It's OK now! Thank you for your help!