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Enable Greylisting
Problem reported by Adrian Pope - 9/25/2014 at 10:36 AM
Not A Problem
Due to an increase in the amount of spam we are receiving I went to enable greylisting.  From the Security>Greylisting I enabled greylisting for everyone.
 
 It has been a few days now and I went to view the grey list report and it appears the grey list is not gathering any stats (allowed connections, delayed connections, etc) so I am assuming that even though I enabled greylisting... it is not actually running.  Does anyone know why this would happen (I did restart all services after enabling greylistings)?

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0
Severin Kreuzmayr Replied
9/26/2014 at 12:04 AM
Make sure you have disabled the Greylist Weight Threshold under
Security -> Antispam -> SMTP Blocking
0
Adrian Pope Replied
9/26/2014 at 6:37 AM
That was it. Thanks for the suggestion.
0
Frank Miller Replied
5/3/2015 at 2:03 PM
It doesn't work, I disabled Greylist Weight Threshold but there is no any stats. It seems greylisting doesn't work in v.13
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Frank Miller Replied
5/4/2015 at 5:59 AM
It started working, after SmarterMail restart we have a greylisting stats.
0
Steve Reid Replied
5/5/2015 at 5:19 AM
Perhaps a note needs to be included saying a Smartermail Service restart is required?
1
Bruce Barnes Replied
5/5/2015 at 5:54 AM
You should also minimize your greylisting block time.
 
A block of 1 minute seems to work as effectively as the default of 15 minutes.
 
Here are the Greylisting settings we use - as stated in my antispam document:
 
ChicagoNetTech's Greylisting Settings
ChicagoNetTech's Greylisting Settings
 
Do NOT allow users to override greylisting.  It will only overload your help desk and give you grey hair trying to troubleshoot
 
PS:  I should have a revised version of my antispam document available within the next two weeks.
Bruce Barnes ChicagoNetTech Inc brucecnt@comcast.net Phonr: (773) 491-9019 Phone: (224) 444-0169 E-Mail and DNS Security Specialist Network Security Specialist Customer Service Portal: https://portal.chicagonettech.com Website: https://www.ChicagoNetTech.com Security Blog: http://networkbastion.blogspot.com/ Web and E-Mail Hosting, E-Mail Security and Consulting
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