Re: The most efficient SPAM implementation ever

2020-10-24 Thread Ramon F Herrera
l" group showed exactly the same score in steps (a) and (b). This is intuitively right and expected. However, the "stealth" spam shows a lower score in step (b). TIA, -Ramon F. Herrera = Normal SPAM: bus

Re: The most efficient SPAM implementation ever

2020-10-12 Thread Ramon F Herrera
On 10/11/2020 1:21 PM, Bill Cole wrote: On 11 Oct 2020, at 10:32, Ramon F Herrera wrote: Good point. spamd runs as root and sa-learn runs as 'ramon'. That scheme has worked perfectly well for years, except for that particular spam. That CAN work as long as you have spamd set up correctly

Re: The most efficient SPAM implementation ever

2020-10-11 Thread Ramon F Herrera
On 10/11/2020 10:07 AM, Marc Roos wrote: o16789123x54.outbound-mail.sendgrid.net. The specific range of sendgrid looks like this[1]. So now you know they use sendgrid and probably have access to a 'limited' dynamic ip range. Now you can decide to reject email coming from (the whole of)

Re: The most efficient SPAM implementation ever

2020-10-11 Thread Ramon F Herrera
as root won't help the scores. Regards, Rick On 2020-10-11 10:03 a.m., Ramon F Herrera wrote: *Line of Defense No. 2:* Spamassassin. It have submitted over a thousand messages as follows: % sa-learn --spam --mbox Mail/Junk Unfortunately, that command has never been able to increase

Re: Monitoring the effectiveness of anti-spam measures

2019-10-01 Thread Ramon F Herrera
On 10/1/2019 10:53 AM, Matus UHLAR - fantomas wrote: On 01.10.19 08:50, Ramon F Herrera wrote: This is the 3rd. time that I attempt this post. First, I assumed that the mailing list was down. However, other messages are being distributed properly. My current guess is that maybe a vigilant

Re: Migrating from sendmail to Postfix

2019-09-30 Thread Ramon F Herrera
On 9/29/2019 3:10 PM, Bill Cole wrote: Beyond translating  configuration, there's one important part of Postfix that has no Sendmail equivalent: the postscreen front-line SMTP screener program. Postscreen implements a greeting pause, weighted parallel DNSBL checking, and optionally a few

Migrating from sendmail to Postfix

2019-09-29 Thread Ramon F Herrera
do not foresee much pain on the OS side of the upgrades. I am vaguely familiar with Postfix. I am told that is as capable as ole' sendmail, and much easier to manage. Any suggestions, tips about that upgrade are most welcome. TIA, -Ramon F. Herrera

Re: Something much BETTER that Setting Threshold

2019-09-28 Thread Ramon F Herrera
On 9/28/2019 12:18 PM, Bill Cole wrote: On 28 Sep 2019, at 7:52, Ramon F Herrera wrote: [...] Thanks to Dominic for his suggestion, but being a newbie I am going to start with this approach. I happen

Re: Something much BETTER that Setting Threshold

2019-09-28 Thread Ramon F Herrera
On 9/28/2019 1:53 AM, LuKreme wrote: On Sep 27, 2019, at 23:11, Ramon F Herrera wrote: What I need is simply to remove all traffic coming from the domains: icu, info, etc. That simple step would go a long way to solving

Re: Something much BETTER that Setting Threshold

2019-09-27 Thread Ramon F Herrera
On 9/27/2019 11:40 PM, LuKreme wrote: On Sep 27, 2019, at 13:14, Jerry Malcolm wrote: I am trying to change the results threshold from 5.0 to 4.0. Do you have a really good reason that you have researched and really examined for doing

3 Lines of Defense

2019-09-27 Thread Ramon F Herrera
spection I noticed that about 7,000 messages are being rejected each week. BTW: I am guessing that spamhaus by itself is sufficient, since spamcop only rejected 3 messages that were missed by spamhaus. Any comments, suggestions are most welcome. TIA, -Ramon F. Herrera

Re: Where to find the highest version to be installed by "yum"?

2019-09-27 Thread Ramon F Herrera
On 9/27/2019 1:43 PM, Reio Remma wrote: On 27.09.2019 21:37, Ramon F Herrera wrote: On 9/27/2019 12:38 PM, Amir Caspi wrote: On Sep 27, 2019, at 10:40 AM, Bowie Bailey <mailto:bowie_bai...@buc.com>> wrote: Question: Are you folks aware of any 'yum' repository that carries a versi

Where to find the highest version to be installed by "yum"?

2019-09-26 Thread Ramon F Herrera
Hello, I have been experimenting with 2 distributions of *SpamAssassin *for my Linux server: (1) yum: based on /usr/bin Version 3.3.1 (2) from Perl source: based on /usr/local/bin Version 3.4.2 The biggest advantage of the former over the latter is that I don't have to deal with the

Re: After a long time, implementing SpamAssassin in my Linux server

2019-09-26 Thread Ramon F Herrera
questions. -Ramon On 9/26/2019 11:32 AM, Ramon F Herrera wrote: I very successfully implemented *SpamAssassin* in Linux servers ages ago. Now, I have to add it as 3rd. (as hopefully last) line of defense. In my initial attempt I chose the UsedViaProcmail strategy. I copied the file