C Chuckee New Email May 6, 2016 #1 It appears that there is now no way to make cPanel/WHM reject emails sent to invalid recipients at the SMTP level, in order to prevent backscatter spam from being sent out. In previous versions, the following solution could be used: Exim: correct setup to verify recipient? But now, it says 'endpass' is not recognized anymore. Anyone know how to prevent backscatter in cPanel now, other than simply directing the email to a blackhole?
It appears that there is now no way to make cPanel/WHM reject emails sent to invalid recipients at the SMTP level, in order to prevent backscatter spam from being sent out. In previous versions, the following solution could be used: Exim: correct setup to verify recipient? But now, it says 'endpass' is not recognized anymore. Anyone know how to prevent backscatter in cPanel now, other than simply directing the email to a blackhole?