[CLUE-Tech] SMTP relay attempts - what to do?

[Jeff Cann]

Greetings.

I have SASL configured to work with postfix SMTP - just turned it on this 
morning.   Only authenticated users are allowed to relay, which I confirmed 
via testing.  Already, I'm seeing attempts by random spam scum to use my SMTP 
server:

Dec  2 08:02:55 bluespark postfix/smtpd[25652]: reject: RCPT from 
unknown[210.202.214.141]: 554 <orblist at seed.net.tw>: Recipient address 
rejected: Relay access denied; from=<orblist at mail.apol.com.tw> 
to=<orblist at seed.net.tw>

Dec  5 09:09:59 bluespark postfix/smtpd[29596]: reject: RCPT from 
dialup-67.73.1.44.Dial1.LosAngeles1.Level3.net[67.73.1.44]: 554 
<billpike37 at inbox.lv>: Recipient address rejected: Relay access denied; 
from=<mjkiw at starzentrale.de> to=<billpike37 at inbox.lv>

My question:  Should I do anything about this folks, such as report their 
actions to their ISP?  My guess is that since it's friday night, these 
scumbags get a dialup account and spam for the weekend.  By the time the ISP 
sees my message on Monday, it's already too late.

They cannot use my SMTP server to relay, since it's not open.  I'm just 
philosophically opposed to this bs and I'm wondering what other mail admins 
do about it (if anything).

Thanks
-- 
http://isuma.org/