[Wlug] SPF

[Dick Goodman]

I run 4 Linux mailservers and do all my own DNS for multiple domains
Yesterday (I think) one account on one domain got about 500 emails 
similar to what you described in a period of about 30 minutes.

I have SPF records on many of my domains (because it was so simple to 
set up), and promptly added it to the DNS of the domain of the 
affected account.  Today the number of such emails was down at least 
10x, but I can't say for sure it was the SPF that did it.

Dick

>Hi,
>
>Are any of you admins out there running SPF, or something similar?
>
>   http://www.openspf.org/
>
>How well does it work for you?
>
>Today I started getting a large number of "undeliverable" responses
>due to spammers forging my email address in the From: address.
>
>Wondering if SPF is worth the trouble to set up.
>
>I'm using postfix, btw.
>
>Thanks,
>-Jamie