Many domains don't have reverse DNS setup properly
Dave Cook 280-3824 Exchange Administrator Department of Information Technology -----Original Message----- From: Matt Plahtinsky [mailto:[EMAIL PROTECTED] Sent: Friday, May 28, 2004 10:23 AM To: Exchange Discussions Subject: SPAM / DNS Record I'm new to blocking SPAM. I just setup a new SPAM filter for our email. I am currently blocking mail from any server that does not have a valid DNS record. My question is how often do you come across legitimate business that don't have a registered DNS name for their email server? In the last day I've come across two domains that we need to get email from but no DNS record. Isn't there an RFC stating that this is a must? Matt This transmission may contain information that is privileged, confidential, and/or exempt from disclosure under applicable law. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, or use of the information contained herein (including any reliance thereon) is STRICTLY PROHIBITED. If you received this transmission in error, please immediately contact the sender and destroy the material in its entirety, whether in electronic, or hard copy format. Thank You, Student Health Services @ The Ohio State University (<http://www.shc.ohio-state.edu>) _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&; lang=english To unsubscribe send a blank email to %%email.unsub%% Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with. _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang=english To unsubscribe send a blank email to [EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with.
