Assume, as Mr. Bonomi suggests, that some bad guy has installed some
type of additional mailer on the machine or another machine that's
allowed to relay mail. How would I go about locating that other mailer?
Another popular hack is uploading a PHP script using bugs in a CMS or wiki.
Once you
Date: Sun, 15 Aug 2010 07:57:23 -0400
To: freebsd-questions@freebsd.org
From: pe...@vfemail.net
Subject: Re: Open Mail Relay
At 05:13 PM 8/14/2010, Robert Bonomi wrote:
Date: Sat, 14 Aug 2010 09:29:54 -0400
To: freebsd-questions@freebsd.org
From: pe...@vfemail.net
Subject: Open Mail
From owner-freebsd-questi...@freebsd.org Sun Aug 15 15:15:43 2010
Date: Sun, 15 Aug 2010 22:15:57 +0200
From: Erik Norgaard norga...@locolomo.org
To: freebsd-questions@freebsd.org
Subject: Re: Open Mail Relay
On 15/08/10 13.57, pe...@vfemail.net wrote:
Assume, as Mr. Bonomi suggests
At 05:13 PM 8/14/2010, Robert Bonomi wrote:
From owner-freebsd-questi...@freebsd.org Sat Aug 14 12:22:50 2010
Date: Sat, 14 Aug 2010 09:29:54 -0400
To: freebsd-questions@freebsd.org
From: pe...@vfemail.net
Subject: Open Mail Relay
I have a machine running FreeBSD, sendmail and majordomo
On Aug 15, 2010, at 6:57 AM, pe...@vfemail.net wrote:
I've requested copies of the offensive messages, and I'm hopeful the
complainer will send me copies. I believe I have control over the majordomo
lists -- postings are restricted to list members, postings are monitored, and
many lists
On 15/08/2010 12:57, pe...@vfemail.net wrote:
At 05:13 PM 8/14/2010, Robert Bonomi wrote:
From owner-freebsd-questi...@freebsd.org Sat Aug 14 12:22:50 2010
Date: Sat, 14 Aug 2010 09:29:54 -0400
To: freebsd-questions@freebsd.org
From: pe...@vfemail.net
Subject: Open Mail Relay
I have
On 15/08/10 13.57, pe...@vfemail.net wrote:
Assume, as Mr. Bonomi suggests, that some bad guy has installed some type of
additional mailer on the machine or another machine that's allowed to relay
mail. How would I go about locating that other mailer?
If the messages are indeed relayed
I have a machine running FreeBSD, sendmail and majordomo. I have someone who
is on one of those majordomo lists complaining that they are receiving spam
from me. The complainer says I have an open mail relay that I need to fix.
I went to http://www.abuse.net/relay.htmlhttp://www.abuse.net
On 14.08.2010 17:29, pe...@vfemail.net wrote:
I've reviewed my mail logs for the past couple of days and I can't
find any entries for any mail addressed to the complainer's domain
name except mail that should have been sent.
You can try it yourself, with telnet and proper smtp commands. For
On Aug 14, 2010, at 9:29 AM, pe...@vfemail.net wrote:
I have a machine running FreeBSD, sendmail and majordomo. I have
someone who is on one of those majordomo lists complaining that they
are receiving spam from me. The complainer says I have an open mail
relay that I need to fix.
I
On 14/08/10 15.29, pe...@vfemail.net wrote:
I have a machine running FreeBSD, sendmail and majordomo. I have someone who
is on one of those majordomo lists complaining that they are receiving spam
from me. The complainer says I have an open mail relay that I need to fix.
When somebody
On Sat, Aug 14, 2010 at 8:29 AM, pe...@vfemail.net wrote:
I have a machine running FreeBSD, sendmail and majordomo. I have someone who
is on one of those majordomo lists complaining that they are receiving spam
from me. The complainer says I have an open mail relay that I need to fix
On Sat, Aug 14, 2010 at 9:29 AM, pe...@vfemail.net wrote:
I have a machine running FreeBSD, sendmail and majordomo. I have someone
who is on one of those majordomo lists complaining that they are receiving
spam from me. The complainer says I have an open mail relay that I need to
fix.
I
On 8/14/10 11:05 AM, Mikhail wrote:
On 14.08.2010 17:29, pe...@vfemail.net wrote:
I've reviewed my mail logs for the past couple of days and I can't
find any entries for any mail addressed to the complainer's domain
name except mail that should have been sent.
You can try it yourself, with
Is Abuse.net's test adequate to rule out an open mail relay problem?
It's pretty thorough, and most MTAs have default configurations that
don't permit relay, so it's much less of a problem than it was when I
wrote the tester many years ago. I don't try to check for weak SMTP
AUTH passwords
Is this an open relay using ipv6? If so how to block the ipv6 relay.
I thought after sendmail v8.9, all relay action was blocked by default.
maillog entry
Nov 10 15:01:11 hostname sm-mta[8989]: mAAL021C008989: from=[EMAIL
PROTECTED], size=4825, class=0, nrcpts=0, bodytype=7BIT, proto=ESMTP,
Mark Busby wrote:
Is this an open relay using ipv6? If so how to block the ipv6 relay.
I thought after sendmail v8.9, all relay action was blocked by default.
You haven't given sufficient information to say whether the machine is
an open relay or not. We'd need to see the configuration files
Hello:
-Original Message-
From: [EMAIL PROTECTED] [mailto:owner-freebsd-
[EMAIL PROTECTED] On Behalf Of freebsd
Sent: Wednesday, January 17, 2007 2:34 AM
To: FreeBSD Questions
Subject: Load balancing outgoing mail relay
Hi
I have a simple question but googling does not lead
Hi
I have a simple question but googling does not lead to a valid/usable
answer.
I need to load balance OUTGOING emails. I have serveral smart hosts. I need
my internal SMTP server to send mail using ALL of the smart hosts together,
making some kind of load balancing (no need for wheighted
freebsd wrote:
Hi
I have a simple question but googling does not lead to a valid/usable
answer.
I need to load balance OUTGOING emails. I have serveral smart hosts. I
need my internal SMTP server to send mail using ALL of the smart hosts
together, making some kind of load balancing (no need
This (multiple A records) works for me, at least approximately. Both
Bind and MS DNS will round robin when multiple A records exist for the
same hostname. What is your setup?
FreeBSD 6.2 with Sendmail (initially) and now postfix.
MS DNS with round robin (and TTL set to 0 on the records).
FreeBSD 6.2 with Sendmail (initially) and now postfix.
MS DNS with round robin (and TTL set to 0 on the records).
Resolving with nslookup gives something like:
smarthost.domain.tld
192.168.0.1, 192.168.0.2, 192.168.0.3
If I kill 192.168.0.1 then it goes on the second one. But this is failover,
freebsd wrote:
This (multiple A records) works for me, at least approximately. Both
Bind and MS DNS will round robin when multiple A records exist for the
same hostname. What is your setup?
FreeBSD 6.2 with Sendmail (initially) and now postfix.
MS DNS with round robin (and TTL set to 0 on the
On 1/17/07, Charles Trevor [EMAIL PROTECTED] wrote:
What happens if you do multiple dig/nslookups for smarthost.domain.tld.
Are the records returned in a different order each time? If not the
problem may be at the NS.
Nope. Postfix shuffles equal-weight MX records internally, so it
doesn't
I think I figured it out. The qmail-smtpd.c patch for SMTP AUTH had an
exploit. It did require authentications, but it didn't care what
credentials you threw at it, so long as you sent something.
On that note, does anyone know of a way to get SMTP AUTH working with
qmail without being an
Hello Derrick,
Monday, September 15, 2003, 10:57:57 AM, you wrote:
D I think I figured it out. The qmail-smtpd.c patch for SMTP AUTH had an
D exploit. It did require authentications, but it didn't care what
D credentials you threw at it, so long as you sent something.
Yes, there are/were a
I am looking for a way to further secure a mail server. It isn't an open
rely, but when others try to use it as such with bad return addresses, a
small flood of rejection mail end up on the bad addressed server.
Ex.
To: [EMAIL PROTECTED]
From: [EMAIL PROTECTED]
hotmail ends up with a ton of
Hello Derrick,
Saturday, September 13, 2003, 12:02:01 PM, you wrote:
D I am looking for a way to further secure a mail server.
A mail server is either secure or not, not half way... it's like being
half pregnant. If you installed qmail properly and from lifewithqmail.org
it is secure by
D Ex.
D To: [EMAIL PROTECTED]
D From: [EMAIL PROTECTED]
D hotmail ends up with a ton of bounce msgs
Bounces are a normal part of email life.
D and thinks the server is a relay.
No they don't. Email admims look at the last sender IP
address in the headers, which is the only
Hi Derrick,
--On Saturday, September 13, 2003 05:10:17 PM -0700 Derrick Ryalls
[EMAIL PROTECTED] wrote:
No they don't. Email admims look at the last sender IP
address in the headers, which is the only valid address, all
others are usually forged.
What I am referring to is the unable to deliver
How do I stop mail relaying with Apache? My mail server has been black
listed.
Dan
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To unsubscribe, send any mail to [EMAIL PROTECTED]
someone is probably using formmail.pl - pull it! or hard code the address
the form info is sent to within the formmail script.
On Fri, 30 May 2003, DanB wrote:
How do I stop mail relaying with Apache? My mail server has been black
listed.
Dan
Hey all. I'm having a strange time getting mail out to the FreeBSD
list. It was fine before, until I moved to a DSL connection. So far
as I can tell, the only real difference is that my new IP doesn't
resolve to anything. Thanks to zoneedit.com, however, my domain does
resolve to my IP.
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