What is the difference between spam and junk messages?

[dswartz]

e.g. in the Proxmox Status Report? I've looked through the docs, and if it's there, I missed it...

 

[dylanw]

Junk mail incorporates the number of virus, spam, and greylisted mails, as well as the amount of mails rejected by SPF, RBL, and Pregreet. Basically it's the total count of "bad" emails.

 

[dswartz]

thanks!