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greylisting results

Printed From: LogSat Software
Category: Spam Filter ISP
Forum Name: Spam Filter ISP Support
Forum Description: General support for Spam Filter ISP
URL: https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6369
Printed Date: 02 July 2025 at 11:43pm


Topic: greylisting results
Posted By: Stupid
Subject: greylisting results
Date Posted: 29 January 2008 at 11:24am
I think greylisting is the best thing since the slice of bread.

Here's a summary on the amount of mesgs we quarantined before and after we implemented greylisting:

1/28/2008 Total    1341
1/27/2008 Total    1165
1/26/2008 Total    1089
1/25/2008 Total    1463
1/24/2008 Total    2015
1/23/2008 Total    882
changed to greylisting
1/19/2008 Total    7254
1/18/2008 Total    9315
1/17/2008 Total    6552
1/16/2008 Total    5364
1/15/2008 Total    5540
1/14/2008 Total    4690

I am also tracking inbound connections, but don't have any solid number yet.


Replies:
Posted By: StevenJohns
Date Posted: 30 January 2008 at 10:30am
I love greylisting.....Here are our results for this month. As you can see, we implemented greylisting on Friday 11th Jan.
Not only has the number of spam emails dropped, but the number of virus emails is significantly lower. All in all, this has reduced the load on our SF machine and I have yet to have a complaint from any user !!!!!
 
                                                                Total      Good     Spam     Virus
 
2008-01-01          Tuesday               4421       64           4280       77
2008-01-02          Wednesday        4545       188         4326       31
2008-01-03          Thursday             4068       254         3750       64
2008-01-04          Friday                    5053       230         4724       99
2008-01-05          Saturday              5612       91           5488       33
2008-01-06          Sunday                 5510       73           5411       26
2008-01-07          Monday               6136       313         5775       48
2008-01-08          Tuesday               5268       277         4958       33
2008-01-09          Wednesday        5083       269         4804       10
2008-01-10          Thursday             4625       261         4320       44
2008-01-11          Friday                    1049       275         772         2
2008-01-12          Saturday              709         77           628         4
2008-01-13          Sunday                 673         63           607         3
2008-01-14          Monday               1009       286         720         3
2008-01-15          Tuesday               1041       324         716         1
2008-01-16          Wednesday        669         205         464         0
2008-01-17          Thursday             1136       428         706         2
2008-01-18          Friday                    1164       301         863         0
2008-01-19          Saturday              950         87           859         4
2008-01-20          Sunday                 933         70           861         2
2008-01-21          Monday               1225       325         890         10
2008-01-22          Tuesday               1294       315         976         3
2008-01-23          Wednesday        1206       280         921         5
2008-01-24          Thursday             1279       360         906         13
2008-01-25          Friday                    1117       254         858         5
2008-01-26          Saturday              977         77           897         3
2008-01-27          Sunday                 767         83           681         3
2008-01-28          Monday               1276       323         950         3
2008-01-29          Tuesday               1217       335         880         2
2008-01-30          Wednesday        760         190         569         1

 

Posted By: IKILLSPAM1
Date Posted: 04 February 2008 at 3:44pm
Guys your figures are good but nothing compared to some of the other users in here.
 
I dont consider my operation large by any means, but we had up around 98,000 in quarantine prior to greylisting. We now are around 28,000. So yes its a huge decrease and I would have never guessed it to be this large. It shows that spammers can be stopped drastically with such an easy implementation.
 
 

Posted By: Desperado
Date Posted: 05 February 2008 at 11:42am
I will chime in.  We dropped for 1.2 million to about 300K.  Really reduced the load on the server by a huge amount!

-------------
The Desperado
Dan Seligmann.
Work: http://www.mags.net
Personal: http://www.desperado.com

Posted By: mbrusl
Date Posted: 06 February 2008 at 12:45am
I have to admit that I'm happy to see this implimented finally.  As a AntiSpam Service, we get plenty of spam hitting our servers and this greylisting has significantly dropped our load off of the server by more than two thirds.  Good going SF team for getting this built in.  A great deal of the spam that was coming in was drive by hits and now, they have to make a second attempt within a certain time to get their junk to be even seen by the rest of SF filters.

Michael



-------------
Michael
support@spacequad.com
If blocked, use spacequad@hotmail.com
Spacequad Internet Services
Spacequad AntiSpam Services
Thunder Bay, Ontario
--------------------------------------------------

Posted By: Simone
Date Posted: 14 February 2008 at 7:08am
quarantined email dropped down to 33% and i had NO ONE with email lost for this filter.

I'm having problems with SFDC filter that is too aggrssive, i'm using 15 as network reliability, which number are you using?

With 15 it is stopping always email with only subject and attachment...

Do you have the same problem?

Posted By: kspare
Date Posted: 14 February 2008 at 1:43pm
We started at about 300k in the quaruntine, we're not sitting between 25,000 to 30,000. The impact of this filter is HUGE!


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