nanog mailing list archives
Re: Working with Spamhaus
From: William Herrin <bill () herrin us>
Date: Wed, 29 Jul 2015 11:01:17 -0400
On Tue, Jul 28, 2015 at 11:39 PM, Bryan Tong <contact () nullivex com> wrote:
I wouldnt have such a disheartened attitude if they would have been specific or given time to comply. eSited LLC (701) 390-9638
Hi Brian, eSited has 37 unresolved spam listings with Spamhaus, all documented and some going as far back as 2013. You got a problem boss. In your position, I would start with "This list of customers has been terminated for spamming. The hacks on these customers' servers have been resolved. The following blocks are each used by multiple customers. Can you help me get a better idea which one is spamming so I can end it?" Next, consider blocking outbound tcp port 25 by default and adding exceptions upon customer request. Like a swimming pool, SMTP is an attractive nuisance. You really have to take active steps to avoid trouble. If you have the tools, consider also capturing a day's email outbound from your network and examine one random message for each origin. Regards, Bill Herrin -- William Herrin ................ herrin () dirtside com bill () herrin us Owner, Dirtside Systems ......... Web: <http://www.dirtside.com/>
Current thread:
- Working with Spamhaus Bryan Tong (Jul 28)
- Re: Working with Spamhaus Stephen Satchell (Jul 29)
- Re: Working with Spamhaus Private Sender via NANOG (Jul 30)
- Re: Working with Spamhaus Michael O Holstein (Jul 30)
- Message not available
- Re: Working with Spamhaus Michael O Holstein (Jul 31)
- Re: Working with Spamhaus Randy Bush (Jul 31)
- Re: Working with Spamhaus Valdis . Kletnieks (Jul 31)
- Re: Working with Spamhaus Jaren Angerbauer (Jul 31)
- Re: Working with Spamhaus Michael O Holstein (Jul 30)
- <Possible follow-ups>
- RE: Working with Spamhaus Michael J McCafferty (Jul 28)
- Re: Working with Spamhaus Bryan Tong (Jul 28)
- Re: Working with Spamhaus William Herrin (Jul 29)
- Message not available
- Re: Working with Spamhaus Larry Sheldon (Jul 28)
- Re: Working with Spamhaus Bryan Tong (Jul 28)
- Message not available
- Re: Working with Spamhaus Larry Sheldon (Jul 28)
- Re: Working with Spamhaus Matt Palmer (Jul 28)
- Re: Working with Spamhaus Bryan Tong (Jul 28)
- Re: Working with Spamhaus Matt Palmer (Jul 28)
- Re: Working with Spamhaus Bob Evans (Jul 29)
- Re: Working with Spamhaus Suresh Ramasubramanian (Jul 29)
- Re: Working with Spamhaus Paul Ferguson (Jul 29)
- Re: Working with Spamhaus Paul Ferguson (Jul 29)
- Re: Working with Spamhaus Bryan Tong (Jul 28)