New Feature: Greylisting *UPDATED* in SpamCop Email System & Accounts Posted September 15, 2007 · Edited September 15, 2007 by mh88 I just noticed that in 'rejected entries' that greylisting is blocking a few gmail addresses trying to email my account. Looking at the source IP they are indeed coming from gmail servers. This clearly is not good. I think the timeouts need expanded or something. Untill then I have turned greylisting off. I think its an excellent idea but the minimum of 30 minutes of wait and timeout of 4 hours is just too narrow. It should be 10 minutes to like 12 hours in my opinion. Perhaps even just 5 minutes. Even 5 minutes will give new spam sources time to hit a few spam traps and get listed so blacklist and/or spamassassin can catch them.