similar to: Sendmail.cf / access.db

A while back, I posted a note asking if anyone had any ideas why the /etc/mail/access file was not being parsed or utilized in the efforts to stop spam and junk mail. I just looked over things again, and have still not found any reason why it still permits the TLD's I have listed to pass thru. I also thought perhaps there might be some "upper limit" to the number of entries

I have enabled the feature in sendmail.mc to check with spamhaus for spammers. However since this block is being made at MTA level, I would like to know is something can be done to obtain statistics of blocked attemps. thanks -- ------------------------------------------------------------ Erick Perez Panama Sistemas Integradores de Telefonia IP y Soluciones Para Centros de Datos Panama,

I have a virus and spam filter device that can do VRFY commands to reject invalid email before it gets to the next mail hop. How can I configure the SMTP server to only allow VRFY commands from one particular IP address, and nowhere else? I don't want spammers to be able to hammer on the gateway looking for valid addresses to send to.

On Fri, February 13, 2015 11:52 am, Les Mikesell wrote: > On Fri, Feb 13, 2015 at 11:39 AM, Valeri Galtsev > <galtsev at kicp.uchicago.edu> wrote: >> >>> Otherwise it accept junk that your primary rejects >> >> Not exactly. If greylisting on primary is set, but on backup MX is not, >> still what is killed by greylisting by primary MX, almost never

On Fri, Feb 13, 2015 at 12:45 PM, Valeri Galtsev <galtsev at kicp.uchicago.edu> wrote: > >>> >> In this case the secondary MX has the same RBL's etc etc as the primary. >> I do see the spammers sending their junk to the secondary more than the >> primary MX. Agree the secondary does not know the difference between >> valid and invalid addresses. >

Les Mikesell wrote: > On Fri, Feb 13, 2015 at 11:39 AM, Valeri Galtsev > <galtsev at kicp.uchicago.edu> wrote: >>> Otherwise it accept junk that your primary rejects >> Not exactly. If greylisting on primary is set, but on backup MX is not, >> still what is killed by greylisting by primary MX, almost never will come >> through backup MX. This is due to the

Don't know if this might be hardware or software related, but it seems that every time I attempt to do a remote reboot of the machine, everything shuts down normally, and it never comes back. Just returned from the co-lo site, and when I plugged the monitor in, it had gone to the point of "rebooting" and hung. This is 4.3 on x-86. Sam -- Sam W.Drinkard -- sam at wa4phy.net

Many of you are interested in and have used or recommended fail2ban for your linux boxes. I finally installed it on our FreeBSD server (no asterisk, hence the OT) with the help of a friend from the VoIP Users Conference and Asterisk community. After a lot of new learning about regex, I extended the actions and filters to look at our mail server, plagued by spammers - who isn't? Our server has

I just got through updating my /etc/mail/access file, adding about 20 more IP's that are sending spam/junk mail. During the process, I noticed I had some partial IP's in there, like 64.12.233 which is what I wanted to block. The IP did NOT however get blocked. From what I see, as long as I have a full ip address, they are blocked, but the partial (16) is not. Should it not work anyhow?

I know this is a "generic" question, but fully CentOS related. I attempted to set up i386 v.4.1 on my primary computer at the co-located site, and thought I had everything squared away till I discovered the machine was refusing mail connections. AFIK, I had no firewall or other objects blocking port 25. It has been my experience that with most arch's and versions where sendmail is

I tried to set in sendmail.mc file at the LAST line define(`LUSER_RELAY', `local:unknownuser') dnl I did service sendmail restart and got an error on a completely different line. - as a thought I deleted that line and put it on line 2 of the sendmail.mc file. re-ran service sendmail restart and now it worked. I changed nothing else. Is there something special about the placement of this

Hello, Who can help me I am trying to setup the sendmail so that I can mail the voicemail's to an internet SMTP mail server. I know that I have to setup the sendmail.cf and configured a relay to my normal SMTP server. I am running RedHat 9 and my internet provider has a SMTP mail server with user and password authentication. Regards, Han -------------- next part

On Fri, Feb 13, 2015 at 12:32 PM, Valeri Galtsev <galtsev at kicp.uchicago.edu> wrote: > > I stated pure observation on at least two pairs of primary - backup MX I > maintain. Still I made backup MXes with greylisting as well (they are > separately hit by same bad spammers scripts, at a rate about 10 times > smaller than primary MXes are and absolutely independently). I think

OK. Digging into this... sendmail.m4 has the lines: define(`FAX_MAILER_PATH',`/usr/bin/faxmail')dnl define(`FAX_MAILER_ARGS',`faxmail -d -n -p 12pt $u@$h $f')dnl MAILER(`fax')dnl proto.m4 has: `R$+ < @ $+ .FAX. > $#fax $@ $2 $: $1 user at host.FAX', `ifdef(`FAX_RELAY', `R$*<@$+.FAX.>$* $:

I know this is more of a general unix question, but the thread about the last kernel update, and memory usage got me to looking and thinking. Given a system with 2 Gb of memory, and at peak usage, top reports considerably less than the 2 gig amount in use, as well as system monitoring that never shows all available memory used, what would happen if you just turned swap off, and let memory

Rats... found some hardware monitoring from the vendor and it's broken, or I'm missing some pieces. No mention of CentOS specifically, but RH is supported, so figured it *ought* to work. I'm apparently missing a library -- liblinc.so.1, and a net search reveals several sources, both for x86 and 64-bit. Tried them both, after the x86 did not work, and the 64-bit I thought was

Running CentOS 4.2 with all updates. I've been using sendmail for my MTA since forever. I've grown used to it and I can make it do what I want it to. However (there's always a catch, isn't there)... Lately it seems that some mail is being lost. I've noticed some instances when a message was sent to myself and others which I will only see if someone replies back to

Over the past year or so, I've collected several errors that some I have found the solution for, others, like the one below are quite befuddling. I get this one every week when /etc/cron.weekly runs. What the heck is the "S" or what it is looking for? Also, I've checked with cpan, and according to cpan, it says it doesn't know what NET::DNS is, yet if I do an i

Hello, Thanks to some nice people on here and other forums I have pretty much finalized my whole mail system on centos 6.x. With all the checks, greylisting, dev/null of any 8+ spam level SA, I still get a few mails. It seems like everytime I enable a new protectant, the mail stops spamming for a few hours...then the spammers decide I am worthy of using better methods against me..and more

I updated my x86 machine day before yesterday, and I noticed two things. The clamav user and group was deleted, and not recreated, and when the makewhatis ran, I got a page full of "zcat: stdout: Broken pipe" entries. What gives with the makewhatis and clamav? Was clamav removed from the software? I encountered no errors when the transaction check and transactions were run.