Percentage-wise the majority of the spam I get is from null senders. Personally, I'd rather NOT have to use the null sender option. But, on the other hand, I am not paying a mint for some damn anti-spam front end that won't work well with null senders. *IF* they pass that legislation where spammers will get fined $500 for each spam, then I will disable it and then charge them for each and every spam that my users get.

I have a ZERO tolerance policy on spam.

# -----Original Message----- # From: IMail_Forum-owner@list.ipswitch.com # [mailto:IMail_Forum-owner@list.ipswitch.com]On Behalf Of R. Scott Perry # Sent: Saturday, May 12, 2001 10:07 AM # To: IMail_Forum@list.ipswitch.com # Subject: RE: ORBSSRC: RE: [IMail Forum] Time to fix "Refuse NULL <> # Senders" option! # # # # ># but no longer are. Same with refusing <>. It causes other postmasters # ># troubles. # >It only causes the postmasters that allow their mail users that SEND mail # >with null headers problems the way I see it # # The problem arises if you send an E-mail to a non-existant user on one of # our domains. If our mail server bounces the message back to you, # your mail # server is going to choke on it, and send it back to # postmaster@one_of_our_domains.com. Then, we have to deal with your # mistake. That's why many mail admins want to use this new # dsn.rfc-ignorant.com test. # # >If every mail server blocked null senders, the problem would # probably go away. # # Yes, but nobody would ever get any bounce messages. Bounce messages are # there for a reason. # # >According to my logs, my mail server bounces between 5 and 10 # messages a day # >based on null sender. # # Have you checked to see how many of those are spam, and how many # are bounce # messages that you're making another postmaster deal with (perhaps the one # that is going to block your mail server)? # # Even if they are all spam, how many spams do you get per day that # don't use # the NULL sender? I've just gone back a bit further, and of the past 68 # spams we've received, not one has used a NULL sender. # # Of course, you are free to block NULL senders, just so long as you are # aware of the possible consequences. If you know the drawbacks, and still # want to do it, it's your choice. My goal is just to make sure # that you and # others are aware of the drawbacks, and why we feel it's a bad choice. # # -Scott # # Declude: Anti-spam and Anti-virus solutions for IMail. http://www.declude.com