Add GUI for email greylisting per email account in Plesk Onyx. Also add a 'Detection Only' mode to allow a testing period, similar to spam filters and mod_security.
Thank you for your input! We will consider this functionality in upcoming releases if it will be popular.
Everyone, please continue voting for this feature if you consider it important.
André Litfin commented
Haggybear greylist manager can be used under Plesk 18 and Plesk 20, you just have to change 2-3 lines of code, see https://serversupportforum.de/threads/plesk-greylisting-manager.31091/post-392270. However a "native" plesk solution would be great.
Mitchell van Bijleveld commented
I don't see why no-one needs this feature. Cpanel's Greylisting GUI is the best I've ever seen and Plesk does not even clearly shows if greylisting is on or off. I'd like to see a greylisting GUI as well where I Can change settings and for example indeed do a test periode in 'testing'
For Plesk 17 the solution may be http://www.haggybear.de/de/greylisting-manager but for Plesk 18 it doesn't work. It would be good to have a solution from Plesk directly.