Be sure such accounts are read frequently by admins with the authority to fix the problems identified by reports to that address. Provide proper role accounts in RIR whois records, including abuse role accounts. Problems which aren't identified don't get fixed. Identify your IPs so other networks can reach you! Can he? Some tips on IP allocation and identification. What should we do about bad customers ? How do I connect with other "abuse desks" in the industry? What can we do to prevent fraudulent signups? What can we as an ISP do to prevent spam through compromised accounts? Dynamic IP lists & port 25 blocking - strongly suggested! How do users send mail if Port 25 is blocked? (SMTP AUTH) What is "proxy hijacking"? What do I need to know about proxies? What is a "honeypot" or "proxypot"? What is a "proxy hijack source" or "C&C"? Should an ISP use the XBL to block their own users since it means they have a virus or open proxy? Should an ISP use the PBL to block their own users? Backscatter from spam firewalls and anti-virus systems How do I defend against blowback sent by other servers? My mail server is listed on the SBL as a phish spam source, what should I do ? END USER QUESTIONS My Exchange server is sending spam, but it is not an open relay! What should I do? How can we keep 419ers off our webmail? URL shorteners and redirectors - what can they do about abuse? My IP was used for rogue DNS - how is that happening? What is "fast flux" hosting? What's this ARP (Address Resolution Protocol) daemon spoofing? Got any info on PHP Nuke exploits? Why should I worry about reverse DNS (rDNS)? How do I get rDNS working? What rDNS naming convention should I use? My customer says it's not them is that true or an excuse? But I didn't receive any spam reports! Why not? How do I control affiliate spammers? We're a USA based ISP and a spammer is threatening to sue us if we block his spam. ![]() Identify your IPs so other networks can reach you! We get a lot of abuse mail, how can we handle it? But we're not seeing any spam reports!? What can we do about accounts which are not breaking the law? (AUP) We are an ESP and send lots of mail.
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