Displaying 20 results from an estimated 2000 matches similar to: "spam control"
2008 Oct 31
4
offtopic question .. apprecyice ur help
Dear All,
its a offtopic question but really apprecite if someone would advise n help
i have been running a mil server with sendmail
and have sbl-xbl.spamhaus.org as my dnsbl.
i had other servers which are alredy out now
that is relays.ordb.org and dsbl.org have already been out of my sendmail
config.
any one knows of ny other servers i could add in my sendmail config
apprecite ur help
2005 Mar 25
4
Spam to this list
Hi,
I'm not sure what the policy of this list is and I bet everyone has a spam
filter, so nobody might have noticed, but we got spammed.
Can anyone send mail to the list or do you have to subscribe first ?
-- dag wieers, dag@wieers.com, http://dag.wieers.com/ --
[all I want is a warm bed and a kind word and unlimited power]
2005 Aug 28
5
Trying to control the torrent of spam...
Someone got ahold of my information (actually, I know who they are -
t2net.net - just not how to get back at them) and now I'm getting 4
phone calls a week upwards of 20 spams a day.
I'm trying to put an end to the spam at least and the built-in stuff for
Evolution isn't working as well as it should I did some Googling on
procmail and fetchmail and spamassassin config files and much
2012 Jan 13
2
Using Dovecot-auth to return error code 450 (or other 4xx) to Postfix when user is on vacation
Hello to all members.
I am using Dovecot for 5 years, but this is my first post here.
I am aware of the various autoresponder scripts for vacation autoreplies (I am using Virtual Vacation 3.1 by Mischa Peters).
I have an issue with auto-replies - it is vulnerable to spamming with forged email address.
Forging can be prevented with several Postfix settings, which I did in the past - but was forced
2007 Mar 14
5
sendmail and rbl blocking - generating statistics
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,
2008 Sep 16
1
Quota, maildir, MySQL,
Hi everybody,
I am trying to work with quota. I use postfix and dovecot with a sql
backend. Below you'll find my configuration. Everything works except for
the quota part. It doesn't seem to see the quota and doesn't respond to
the sender that the client is over its quota.
versions:
postfix-2.5.20070531-mysql
dovecot-1.0.2-mysql
Thanks for the help in advance.
My Settings:
#
2019 Dec 29
1
Dovecot Postfix MySQL Authentication Issues
I am I a situation where I have to wipe my remote server and reinstall, Its been a while since I built a server and I am not as sharp as I use to be
I am running FreeBSD 12.1. well at least the server is... I am getting constant authentication errors like
Dec 28 22:10:18 triggerfish dovecot[21809]: imap-login: Aborted login (auth failed, 1 attempts in 6 secs): user=<jason at example.com>,
2006 Mar 05
2
Q's about switching from sendmail to postfix
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
2006 Nov 21
1
QMAIL - RBLSMTP - HOW to WHITELIST
Dear Friend,
I done configuration using RBLSMTPD with WHITELIST, but I don't know it
is correct.
Please check files below are corrects.
Thanks
Adriano
=== FILE WHITELIST.DOMINIO.RBL. ====
$ttl 900
whitelist.dominio.rbl. IN SOA host1.xxxxxx.com. root.xxxxx.com. (
2006112002 ; serial;
3600 ; refresh period (1 hora);
900 ; retry time (15 minutos);
1800 ; expire tiem (30 minutos);
900 ;
2014 Jul 24
4
Sieve plugin (fc17 + sendmail + roundcube)
Hello, I'm trying to configure sieve plugin on my mail server so that people can do mail filtering (and mostly vacation notification) on their account. The mail server is running fine since 5 years and is based on :- sendmail- dovecot- roundcube It serves 2 differents domains. I've recently installed pigeonhole for fc17, and managed to configure managesieve plugin in roundcube
2012 Mar 12
3
postfix and spam, I am impressed
I have had the same email address since 1997 (when microsoft stole
bob.com from me thanks to network solutions...)
In the early days I of course was free with my email and used it everwhere.
Fast forward to 2012, some 15 years later.
woof..the amount of spam sent to me has always just kept getting worse
and worse.
On my centos 5 server I just used sendmail with spamassassin and it
killed a
2012 Feb 02
10
postfix - reject of incoming mail due to helo check??
Hi list,
I have been getting the following types of log messages
Jan 30 08:22:33 ndgonline postfix/smtpd[30538]: NOQUEUE: reject: RCPT
from unknown[71.46.229.50]: 450 4.7.1 Client host rejected: cannot find
your hostname, [71.46.229.50]; from=<DWoodman at orangebankfl.com>
to=<rkampen at ndgonline.net> proto=ESMTP helo=<mail.floridianbank.com>
a rdns check shows all is well
2010 Nov 16
2
Postfix - message queue filling with Host or name not found - try again
Hi list,
I have noted over the last week or so my DNS servers are dumping lots of
messages for bogus domain lookups. Examining the postfix queue with
postqueue -p: I see many
(Host or domain name not found. Name service error for
name=bdgiedjhea.po6e4ina.com type=MX: Host not found, try again)
Jake at bdgiedjhea.po6e4ina.com
My question - why does this
2017 Jun 28
10
ransomware etc
Hi all,
Just out of curiosity: is there anything we can do, on the samba side,
to counter the recent ransomware attacks? (or limit the damage done)
I'm thinking like: limit the number of files per second a client
(workstation) is allowed to edit, or some other smart tricks..?
It would be nice if samba could be an extra layer of defense.
Something perhaps a vfs module could help with..?
2013 Aug 22
3
Logging passwords on auth failure/dealing with botnets
Hi,
Since upgrading our mail servers to Postfix/Dovecot, we've seen a rather large increase in botnet brute force password attacks. I guess our old servers were too slow to suit their needs.
Now, when they hit upon a valid user, it's easy to see what passwords they are trying (we've enabled auth_debug_passwords and set auth_verbose_passwords = plain). We can easily have log
2012 Jun 14
2
Sendmail SMTP Brute-Force Attack
Dear CentOS Community
Is totally clear there's no support sendmail platform today, but I need to
stop SMTP brute-force attack on sendmail. My server is attacked today, my
maillog look like :
4624 at myserver.com>, proto=ESMTP, daemon=MTA, relay=myserver.com [127.0.0.1]
Jun 14 19:07:01 at6412 sendmail[24627]: q5EN71jC024627: from=<>, size=3958,
class=0, nrcpts=1,
2010 Oct 20
8
anti-spam+anti-malware suggestions
Hello people,
I am using now qmail in cluster with LDAP + Interscan Messaging Security
Suite from Trendmicro.
I need to develop a new solution with:
- postfix
- dovecot
- anti-spam
- anti-malware.
I am thankful any help or suggestion for anti-spam and anti-malware.
Thanks in advance!
--
:) cumprimentos
----------------------
Jos? Lu?s Faria
Network Eng./Administrador de
2005 Apr 01
10
postfix tightening
I am used to sendmail and am using Postfix now and am uncertain of some
features. I typically would comment out the line in sendmail.mc that
went something like 'accept unresolvable domains'
I tried using
smtpd_sender_restrictions =
reject_unverified_sender
reject_unverified_smtp
and this seems a bit too restrictive and got some bounces on legitimate
senders
so I'm
2010 Jun 04
5
help with sendmail closing relay
I have centos 4.8 i686. It has stock sendmail. see file below.
I am getting reports that it is an open relay. I have searched all
around and
it seems like it should be closed. I have dnl for
accept_unresolvable_domains.
What can I do to close my sendmail.
Thanks,
Jerry
My sendmail.mc is as follows:
---------------------------------
divert(-1)dnl
dnl #
dnl # This is the sendmail macro config
2019 Jun 17
5
Postfix and choice of RBL
Hi,
I'm managing several mail servers running CentOS 7, Postfix and Dovecot.
SpamAssassin is filtering mail nicely, but I'm considering using RBL
(blacklists) to take some load off the servers.
General question to those of you who use RBL. Which lists do you
recommend using?
Cheers,
Niki
--
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