Re: Massive spamruns

2013-06-18 Thread Dave Warren
On 2013-06-13 18:49, John Hardin wrote: On Thu, 13 Jun 2013, Alex wrote: There's anecdotal reports that spammers focus on backup MX hosts in the hopes they are less-well-protected. You might also try changing the MX weighting and see if that causes the spam to concentrate on a specific MX hos

Re: Massive spamruns

2013-06-13 Thread Benny Pedersen
Alex skrev den 2013-06-14 00:42: I'm thinking this is sounding like a better option. The IPs change way too quickly for me to be able to keep up with updating a DNSBL. It's funny -- despite all MXs having the same weight, mail03 is really the one that's pounded with these pump-and-dump spams. M

Re: Massive spamruns

2013-06-13 Thread John Hardin
On Thu, 13 Jun 2013, Alex wrote: There's anecdotal reports that spammers focus on backup MX hosts in the hopes they are less-well-protected. You might also try changing the MX weighting and see if that causes the spam to concentrate on a specific MX host. That might give you a little more positi

Re: Massive spamruns

2013-06-13 Thread Alex
Hi, On Wed, Jun 12, 2013 at 3:07 PM, Benny Pedersen wrote: > Ben Johnson skrev den 2013-06-12 18:26: > >> Isn't this the function that Bayes is intended to serve, rather precisely? > > sa-grey plugin might help, spammers change sender address and ips, so lets > track it, works well here, rbl is n

Re: Massive spamruns

2013-06-13 Thread Alex
Hi, On Thu, Jun 13, 2013 at 6:53 PM, John Hardin wrote: > On Thu, 13 Jun 2013, Alex wrote: >> I'm thinking this is sounding like a better option. The IPs change way >> too quickly for me to be able to keep up with updating a DNSBL. It's >> funny -- despite all MXs having the same weight, mail03 i

Re: Massive spamruns

2013-06-13 Thread John Hardin
On Thu, 13 Jun 2013, Alex wrote: John Hardin wrote: As was suggested earlier: greylisting? I'm thinking this is sounding like a better option. The IPs change way too quickly for me to be able to keep up with updating a DNSBL. It's funny -- despite all MXs having the same weight, mail03 is rea

Re: Massive spamruns

2013-06-13 Thread Alex
Hi, On Wed, Jun 12, 2013 at 2:54 PM, Daniel McDonald wrote: > On 6/12/13 1:25 PM, "Alex" wrote: > >> John Hardin wrote: >>> As was suggested earlier: greylisting? >> >> I really don't think my users would tolerate the delay, so I've never >> implemented it. They would have vendors calling them o

Re: Massive spamruns

2013-06-13 Thread polloxx
Neil, I'm sorry but I can't disclose the logs. fortunately 95% of them were blocked by blacklisting or greylisting. I just wanted to know if other people see a massive increase of spam the last weeks. On Wed, Jun 12, 2013 at 9:31 PM, Benny Pedersen wrote: > Alex skrev den 2013-06-12 20:25: > >

Re: Massive spamruns

2013-06-12 Thread Benny Pedersen
Alex skrev den 2013-06-12 20:25: John Hardin wrote: As was suggested earlier: greylisting? I really don't think my users would tolerate the delay, so I've never implemented it. They would have vendors calling them on the phone complaining, not to mention users. From what I understand the dela

Re: Massive spamruns

2013-06-12 Thread Benny Pedersen
Ben Johnson skrev den 2013-06-12 18:26: Isn't this the function that Bayes is intended to serve, rather precisely? sa-grey plugin might help, spammers change sender address and ips, so lets track it, works well here, rbl is not a content, but url is, in other words, if one check rbl in mta s

Re: Massive spamruns

2013-06-12 Thread Daniel McDonald
On 6/12/13 1:25 PM, "Alex" wrote: > > John Hardin wrote: >> As was suggested earlier: greylisting? > > I really don't think my users would tolerate the delay, so I've never > implemented it. They would have vendors calling them on the phone > complaining, not to mention users. From what I un

Re: Massive spamruns

2013-06-12 Thread Alex
Hi, # 2013 cars local dealership http://pastebin.com/3bEMiV3B >>> >>> URI in that sample >>> >>> pohformed.com listed on black.uribl.com >>> pohformed.com listed on jp.surbl.org >>> pohformed.com listed on sc.surbl.org >>> pohformed.com listed on dbl.spamhaus.org >> >> I know I should ha

Re: Massive spamruns

2013-06-12 Thread John Hardin
On Wed, 12 Jun 2013, Alex wrote: I know I should have mentioned that. Yes, I'm using the above RBLs, and they're all correctly tagged here now. I was hoping for something more preemptive to trigger on these more generally because the IPs are only used for a short while, but long enough to get 2

Re: Massive spamruns

2013-06-12 Thread Ben Johnson
On 6/12/2013 12:22 PM, Alex wrote: > Hi, > >>> # 2013 cars local dealership >>> http://pastebin.com/3bEMiV3B >> >> URI in that sample >> >> pohformed.com listed on black.uribl.com >> pohformed.com listed on jp.surbl.org >> pohformed.com listed on sc.surbl.org >> pohformed.com listed on dbl.spamh

Re: Massive spamruns

2013-06-12 Thread Alex
Hi, >> # 2013 cars local dealership >> http://pastebin.com/3bEMiV3B > > URI in that sample > > pohformed.com listed on black.uribl.com > pohformed.com listed on jp.surbl.org > pohformed.com listed on sc.surbl.org > pohformed.com listed on dbl.spamhaus.org I know I should have mentioned that. Yes,

Re: Massive spamruns

2013-06-12 Thread Axb
On 06/12/2013 05:09 PM, Alex wrote: # 2013 cars local dealership http://pastebin.com/3bEMiV3B URI in that sample pohformed.com listed on black.uribl.com pohformed.com listed on jp.surbl.org pohformed.com listed on sc.surbl.org pohformed.com listed on dbl.spamhaus.org using SA 3.4 it adds:

Re: Massive spamruns

2013-06-12 Thread Alex
Hi, On Wed, Jun 12, 2013 at 9:03 AM, Neil Schwartzman wrote: > Uhm. perhaps some snippets from the maillogs, or examples? I thought I would take the opportunity to post a few I'm seeing and can't figure out. I've created a bunch of local subject rules, and continually train them with bayes, but

Re: Massive spamruns

2013-06-12 Thread Neil Schwartzman
Uhm. perhaps some snippets from the maillogs, or examples? On Jun 12, 2013, at 5:59 AM, polloxx wrote: > Dear list, > > We see massive spamruns since begin june. Are other people also similar runs? > They fill our maillog. Fortunately most is blocked. smime.p7s Descrip

Massive spamruns

2013-06-12 Thread polloxx
Dear list, We see massive spamruns since begin june. Are other people also similar runs? They fill our maillog. Fortunately most is blocked.