Registering emails
http://mailinator.com/
Spam Appliances
catalog
Baracuda
for sale
Hunnypot
Wikipedia
Does not help you.
Helps the world.
Project hunnypot
Personal mail domain
Godaddy at http://www.godaddy.com/email/email-hosting.aspx?ci=8973
Limitations at http://help.godaddy.com/topic/167/article/2949
They also offer a catch-all account
Cool idea
Useful for registering .. can track who sold to whom
One dude's setup
Spam Filtering company
How
Set your MX record to point to them
They forward the email back to you
Good
They filter, you don't care how
Less privacy concerns than google
Email is stored locally (i.e. faster, access thru outages)
example
Cheap
Bad
Some privacy concerns
Cost
Google Spam Filtering
Why
Google is awesome at spam filtering.
Updates with latest techniques/databases
Google can know more than you can
Can also use gmail as your smtp relay/smarthost (no one blocks gmail)
Can use it for registering and tracking how
Why not
Google will read/store your email
Delete does not mean delete
SpamAssassin is also updated
How
You can forward your email to them real easy
.forward
/etc/aliases
Use pop/imap (has a delay)
You can retrieve from them real easy
Mail Settings->Pop and forwarding
Notes
One person did personal->gmail->yahoo->personal
Easy setup here
Callbacks (Address Verification)
Idea
Try and verify if the sender can recieve
How
Download some software, edit a config file
Notes
wikipedia
Rejection here
Greylisting
Idea
Say "not yet" on the first delivery attempt.
Why
Spammers don't retry(yet)
Why not
Delays email
See paper.
Does it work
99+% effective, says proponents
How
Get a greylister for your email program example.
Perl code here.
SPF
Idea
Wikipedia
You say who in your domain can send email
Good servers reject email from your domain not on the list
Helps you because they trust those servers
Helps the world by blocking grandmas spam filled box
Spammers can use SPF too
How
Senders
Change things so all email from from a few hosts
firewall
iptables rewriting
relayhost
etc
Add the right record to DNS
Receivers
download some software
edit a config file
Celebrate
-or-
configure spamassassin
0.75 on fail
-2.5 on success
Notes
dig txt gmail.com
Breaks forwarding!!! Must use rewriting!!!!