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GeneralRe: How to stop spam? Pin
Sander Rossel12-Jun-20 3:20
professionalSander Rossel12-Jun-20 3:20 
GeneralRe: How to stop spam? Pin
Dave Kreskowiak12-Jun-20 3:23
mveDave Kreskowiak12-Jun-20 3:23 
GeneralRe: How to stop spam? Pin
Sander Rossel12-Jun-20 3:35
professionalSander Rossel12-Jun-20 3:35 
GeneralRe: How to stop spam? Pin
englebart15-Jun-20 9:01
professionalenglebart15-Jun-20 9:01 
GeneralRe: How to stop spam? Pin
David Crow12-Jun-20 4:34
David Crow12-Jun-20 4:34 
GeneralRe: How to stop spam? Pin
dandy7212-Jun-20 3:24
dandy7212-Jun-20 3:24 
GeneralRe: How to stop spam? Pin
Dave Kreskowiak12-Jun-20 5:32
mveDave Kreskowiak12-Jun-20 5:32 
GeneralRe: How to stop spam? Pin
Basildane12-Jun-20 2:48
Basildane12-Jun-20 2:48 
Speaking as someone who has run Exchange since 1994, i can tell you it is a pretty complex subject. It's a whole science. The technology is always changing, the criminals are finding new ways to try and exploit people. It's a war.

It's a war I mean to win.

But you have to keep on top of your edge firewalls, examine logs daily. DKIM and SPF are critical. Careful configuration of DNS based blacklists are critical.

99.99% of spam is dropped by simply blocking non-conforming inbound messages. I then have my firewall block their subnets for a year to cut the noise traffic.

Right this minute I have over 1/2 million subnets blocked on an edge firewall... All of that is totally automated but I have to keep on top of it to make sure nothing gets through.

On our entire infrastructure, I can remember getting 1 spam email in the last 2 months. (the firewall drops about 1 a second).
GeneralRe: How to stop spam? Pin
Sander Rossel12-Jun-20 3:21
professionalSander Rossel12-Jun-20 3:21 
GeneralRe: How to stop spam? Pin
fd975012-Jun-20 5:03
professionalfd975012-Jun-20 5:03 
GeneralRe: How to stop spam? Pin
Sander Rossel12-Jun-20 5:18
professionalSander Rossel12-Jun-20 5:18 
GeneralRe: How to stop spam? Pin
Frank Malcolm14-Jun-20 20:09
Frank Malcolm14-Jun-20 20:09 
GeneralRe: How to stop spam? Pin
Sander Rossel14-Jun-20 22:28
professionalSander Rossel14-Jun-20 22:28 
GeneralRe: How to stop spam? Pin
dandy7212-Jun-20 2:51
dandy7212-Jun-20 2:51 
GeneralRe: How to stop spam? Pin
C Grant Anderson16-Jun-20 7:00
professionalC Grant Anderson16-Jun-20 7:00 
GeneralRe: How to stop spam? Pin
Basildane12-Jun-20 2:53
Basildane12-Jun-20 2:53 
GeneralRe: How to stop spam? Pin
Sander Rossel12-Jun-20 3:24
professionalSander Rossel12-Jun-20 3:24 
GeneralRe: How to stop spam? Pin
Basildane12-Jun-20 3:44
Basildane12-Jun-20 3:44 
GeneralRe: How to stop spam? Pin
Sander Rossel12-Jun-20 3:48
professionalSander Rossel12-Jun-20 3:48 
GeneralRe: How to stop spam? Pin
Basildane12-Jun-20 3:52
Basildane12-Jun-20 3:52 
GeneralRe: How to stop spam? Pin
Sander Rossel12-Jun-20 3:56
professionalSander Rossel12-Jun-20 3:56 
GeneralRe: How to stop spam? Pin
Member 1325675015-Jun-20 3:47
Member 1325675015-Jun-20 3:47 
GeneralRe: How to stop spam? Pin
CHill6015-Jun-20 3:48
mveCHill6015-Jun-20 3:48 
GeneralRe: How to stop spam? Pin
Member 1325675015-Jun-20 4:37
Member 1325675015-Jun-20 4:37 
GeneralRe: How to stop spam? Pin
W Balboos, GHB12-Jun-20 4:26
W Balboos, GHB12-Jun-20 4:26 

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