I recently shut down my backup mail server. All it seemed to be doing was 
collecting spam. It had been a while since a legit message was sent thru 
it, and since I was loosing my static IP at home where I had my backup 
mail server, I just decided to get rid of it. I figure that any legit 
email will retry enough times that I should still get it in the event my 
main server goes offline (which I'm expecting if/when it does, it would 
be for less than 24 hours)

My question is... since spammers seem to like sending to backup mail 
servers when they are present, what's the opinion of leaving my DNS to 
point to a now non existent backup server? Is there any harm in doing 
this? 

It would seem to me that any legit mail server will try the backup 
server, find it too doesn't respond, and then hold the message to try 
again at a later time. In theory, my main server would be back online 
before the sending server gives up. So the only thing I see by leaving 
the IP pointing to a non server, is all the spammers will leave my main 
server alone thinking the backup server is present. They would try it, 
and when it doesn't respond, they would give up. 

Is that true, or are spammers more patient then I am giving them credit 
for, and they will work their way up the MX list and try my main server 
when the backup doesn't respond.

Opinions?

-chris
<http://www.mythtech.net>


#############################################################
This message is sent to you because you are subscribed to
  the mailing list <[EMAIL PROTECTED]>.
To unsubscribe, E-mail to: <[EMAIL PROTECTED]>
To switch to the DIGEST mode, E-mail to <[EMAIL PROTECTED]>
To switch to the INDEX mode, E-mail to <[EMAIL PROTECTED]>
Send administrative queries to  <[EMAIL PROTECTED]>

Reply via email to