We only white list after emailing the user and the mail admin. It is in their best interest to fix the RDNS and HELO bogus issues.
Attached is the email I send to them. Why should I slow the processing of email on our server for a few ignorant admins. I also send an automated email to all users on our server telling them what email has been held and giving them the option to recover the mesages. In sending the automated email I no longer have to go through the held emails, the users do it. I get about 1/3 of the admins thanking me for telling them of their config issues, 1/3 who think they have it configured that way for security reasons, and 1/3 who do not even reply. Kevin Bilbee > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Agid, Corby > Sent: Tuesday, September 02, 2003 4:11 PM > To: 'Declude. Junkmail (E-mail) > Subject: [Declude.JunkMail] REVDNS and HELOBOGUS > > > Hello, > > We get a lot of false postives from sites that fail two of three simple > tests such as REVDNS, HELOBOGUS and BADHEADERS which combined have just > enough weight (10 to12 ), to get tagged as spam. I have been whitelisting > as I learn about them, which seems to be approx one to three entries per > day. > > Do most people reduce the weight of these tests or increase the > threshold of > what's considered spam, or just whitelist as needed? > > Just curious. > > Corby > > > --- > [This E-mail was scanned for viruses by Declude Virus > (http://www.declude.com)] > > --- > This E-mail came from the Declude.JunkMail mailing list. To > unsubscribe, just send an E-mail to [EMAIL PROTECTED], and > type "unsubscribe Declude.JunkMail". The archives can be found > at http://www.mail-archive.com. >
Hi, I am Kevin Bilbee the Network Administrator at Standard Abrasives. We are having some issues receiving email from your mail server. I would appreciate it if you could help me out. Your mail server is missing a few DNS entries that are required to validate that email is coming from your server and not someone pretending to be you. About 60% of the mail coming into our server is unsolicited (SPAM) so being able to identify legitimate email is important to us. These items are outlined below. X-RBL-Warning: HELOBOGUS: Domain lwtc_nt_1.linweld.com has no MX or A records. X-RBL-Warning: REVDNS: This E-mail was sent from a MUA/MTA 65.197.31.34 with no reverse DNS entry. This is the link to the Internet Engineering Task Force site and the RFC for Common DNS Operational and Configuration Errors section 2.1. It discusses DNS and common configuration errors pertaining to mail servers. http://www.ietf.org/rfc/rfc1912.txt?number=1912 If you could forward this to your IT department or send me contact information for them, I would appreciate it. Mail from your server is not lost, it is delayed 1 day while waiting for review. If it is found to not be spam, the recipient has the option to recover the message. If they do not recover it in 14 days, it is purged from the system. I understand that mail from your server is not spam and is legitimate business email. But our spam filter cannot make that determination without the above fixes, so human intervention is involved to complete delivery to the final recipient. Thank you for your assistance in this matter, Kevin Bilbee Network Administrator Standard Abrasives, Inc. [EMAIL PROTECTED] (805) 520-5800 x7332 ____________________________________ Changing the way industry works.
