Gadgetopia

Hope they consider the cascading costs of changing a domain name. Everything from marketing collateral to inbound link equity will have to be written off. A dedicated spam filter might be a cheaper solution!

How about changing provider? Mailtrust is a good place to try.

We set up server-wide spam protection based on DNS blackhole lists using spamhaus.org and that has significantly reduced spam. for clients needed more protection we use http://www.katharion.com and it is very effective.

Hope they consider the cascading costs of changing a domain name. Everything from marketing collateral to inbound link equity will have to be written off.

It's a weird deal. They actually have two domains already. Their first domain (the one getting all the spam) was very long, so we got them a shorter one last year. Email will get delivered to either. After a year of using the shorter (non-spammed) one as their primary, they're getting about 75% of their email there, so the change would be a little painful, but manageable.

Marketing collateral is due to change later this year anyway, and they were going to use the new domain for that.

Their Web domain name would not change. We'd leave that alone.

A dedicated spam filter might be a cheaper solution!

Can't do it. Three hundred thousands emails per day down down their DSL connection would destroy their connection.

That's a lot of spam for 4 days. That's about what I get in a year for the domain I have filtered. Have you looked into Postini.com? Google bought them a while back and enterprise email filtering is one of their core competencies. I do not know what their pricing looks like though. Shoot me an email if you want more info. I've got a friend that works in sales there.