Nathan Ward wrote:
On 15/01/2008, at 11:23 AM, Gerard Creamer wrote:
eats our bandwidth
And if you're an access ISP with a mail service, you're going to be receiving that spam email, and not being able to charge your end users for downloading it :-)
I'm not sure that bandwidth is a reason for spam filtering, unless you're a really big mail provider or something.
"Because users want it" is a much better reason.
Does anyone have actual stats of what sort of percentage of their traffic is spam? I don't really have any easy way to get that right now, unless I make my mail server output message size stats in to log files, or something. I'm curious as to whether anyone else has an easy way to get it that I'm missing.
I know I'm small fry by many of your standards but here are the local figures for Jan 15th 2008. (filters in order) RBL-Blocked 590 NX-rDNS 506 Other-Reject 385 SPF-Blocked 13 Viral 0 Spam-Trap Accepted 564 Delivered Mail 1533 Forwarded Mail 73 So spam, (blocked+trapped) is 1606/2058 -> 78% of all email yesterday. Seems to have been a slow day with only 564 trapped. Most months the traps hits 40K+ over the whole period. Based on random enquiries of customers when they contact, I'd estimate somewhere around 1% gets delivered when it should not. AYJ Treehouse Networks Ltd.