i get spam mails that pretend to be from yahoo (eg.from yahoo.it, yahoo.nl)
on my postfix relay; how can i prevent such kind of foregeries
help appreciated
thanks
Norm Mackey:
> The failure was logged in /var/log/mail/errors as messages like:
> > [r...@relay mail]# cat errors |grep "open files"|head -n 5
> > Jan 19 00:39:43 relay postfix/qmgr[26415]: fatal: socket: Too many
> open files
Your machine resources don't match the Postfix configuration. Either
sc
Wietse Venema [mailto:wie...@porcupine.org] wrote:
>
> Norm Mackey:
> > The situation reached the point where the mail queue could not even
> > be listed completely with postqueue without postqueue failing, and
>
> What was the failure? I suppose that after $daemon_timeout seconds
> (1800s default
Thomas:
> Duane Hill wrote:
> > Care to take a look at the Postfix documentation?
> >
> > http://www.postfix.org/postconf.5.html#relayhost
>
>
> As i wrote, i read the documentation i found - it was exactly this small
> entry about relayhost!
>
> The answer from Noel Jones contains quite some m
Noel Jones wrote:
... more likely nobody cares, because postfix behavior is documented.
When the relayhost is a hostname enclosed by "[ ]" brackets, postfix
asks for an A record and does not ask for an MX record.
If relayhost is an IP address enclosed by brackets, postfix uses that
IP with n
Duane Hill wrote:
Care to take a look at the Postfix documentation?
http://www.postfix.org/postconf.5.html#relayhost
As i wrote, i read the documentation i found - it was exactly this small
entry about relayhost!
The answer from Noel Jones contains quite some more and deeper
information -
J.P. Trosclair wrote:
This is really off topic, but grep already returns a success and
failure code based on if there were any matches which mouss's code
uses from what I can tell. There's really no reason to look at grep's
stdout, if it has a match the return code is 0, it doesn't it's != 0.
Steve Crawford wrote:
postmas...@klam.ca wrote:
I don't currently own a blackberry, but am thinking about getting one
(the Obama effect). A friend who works in the Cellphone business has
warned me that if I just setup the BB to go get my email from my postfix
server this will treated as internet
On Sat, 24 Jan 2009, Thomas wrote:
Thomas Ackermann wrote:
So, does anybody know what technically is the difference between the use
with and without the signs?
I mean, what network things may happen or not happen?
Nobody knows the technical differences?
Care to take a look at the Postfix d
Thomas wrote:
Thomas Ackermann wrote:
So, does anybody know what technically is the difference between the
use with and without the signs?
I mean, what network things may happen or not happen?
Nobody knows the technical differences?
:-(
... more likely nobody cares, because postfix behavio
Thomas Ackermann wrote:
So, does anybody know what technically is the difference between the
use with and without the signs?
I mean, what network things may happen or not happen?
Nobody knows the technical differences?
:-(
mouss wrote:
check_parameter()
{
postconf $1 2>&1 | grep -vq "unknown parameter"
return $?
}
or
check_parameter()
{
postconf $1 2>/dev/null | grep -q =
return $?
}
Then, you need an exit-code wrapper for "grep" too, it seems :)
check_result() {
RESULT=$( grep "${1}" "${2}" 2>/d
On Fri, 23 Jan 2009 16:09:07 -0500
sean darcy wrote:
> I have a voip server that receives faxes in a tif file. I use
> fax2email to convert the tif to a pdf and send it as an attachment
> over postfix. My isp blocks port 22, so I've setup a gmail account to
> use as a relay. That generally work
postmas...@klam.ca wrote:
I don't currently own a blackberry, but am thinking about getting one
(the Obama effect). A friend who works in the Cellphone business has
warned me that if I just setup the BB to go get my email from my postfix
server this will treated as internet data, whereas if I can
postmas...@klam.ca wrote:
I don't currently own a blackberry, but am thinking about getting one
(the Obama effect). A friend who works in the Cellphone business has
warned me that if I just setup the BB to go get my email from my postfix
server this will treated as internet data, whereas if I can
Victor Duchovni:
> On Fri, Jan 23, 2009 at 04:09:07PM -0500, sean darcy wrote:
>
> > I have a voip server that receives faxes in a tif file. I use fax2email
> > to convert the tif to a pdf and send it as an attachment over postfix.
> > My isp blocks port 22, so I've setup a gmail account to us
Victor Duchovni wrote:
On Fri, Jan 23, 2009 at 04:09:07PM -0500, sean darcy wrote:
I have a voip server that receives faxes in a tif file. I use fax2email
to convert the tif to a pdf and send it as an attachment over postfix.
My isp blocks port 22, so I've setup a gmail account to use as a r
postmas...@klam.ca ha scritto:
I don't currently own a blackberry, but am thinking about getting one
(the Obama effect). A friend who works in the Cellphone business has
warned me that if I just setup the BB to go get my email from my postfix
server this will treated as internet data, whereas if
postmas...@klam.ca escreveu:
I don't currently own a blackberry, but am thinking about getting one
(the Obama effect). A friend who works in the Cellphone business has
warned me that if I just setup the BB to go get my email from my postfix
server this will treated as internet data, whereas if
I don't currently own a blackberry, but am thinking about getting one
(the Obama effect). A friend who works in the Cellphone business has
warned me that if I just setup the BB to go get my email from my postfix
server this will treated as internet data, whereas if I can "interface"
postfix - BB t
On Fri, Jan 23, 2009 at 04:09:07PM -0500, sean darcy wrote:
> I have a voip server that receives faxes in a tif file. I use fax2email
> to convert the tif to a pdf and send it as an attachment over postfix.
> My isp blocks port 22, so I've setup a gmail account to use as a relay.
> That gene
I have a voip server that receives faxes in a tif file. I use fax2email
to convert the tif to a pdf and send it as an attachment over postfix.
My isp blocks port 22, so I've setup a gmail account to use as a relay.
That generally works.
But, every once in a while, authentication fails. When I
On 1/23/2009, Victor Duchovni (victor.ducho...@morganstanley.com) wrote:
> - recipient "delimiter", the "+" or sometimes "-" (...)
> character that separates the base address from the address:
>
> - "extension", the rest of the address localpart between
>the delimiter and th
On Fri, Jan 23, 2009 at 08:53:21PM +0100, mouss wrote:
> wrong.
>
> the MX should not be a cname. see
> http://www.rfc-ignorant.org/policy-bogusmx.php
>
> use
> IN MC 10 mail2.freewayprojects.com.
This requirement was relaxed in RFC 2821. It is OK (though still
better not to if not
Kevin Bailey a écrit :
> Hi Guys,
>
> Just a question RE setting up the DNS zone record correctly for a mail
> server.
>
> I have a couple of setups which work but have just copied one and I'm
> getting the following response.
>
> : Host or domain name not found. Name
> service
>error for na
On Fri, Jan 23, 2009 at 02:37:55PM -0500, Charles Marcus wrote:
> On 1/23/2009, hose (h...@bluemaggottowel.com) wrote:
> > Can anyone tell me what the formal name of the email technique of
> > placing something + a delimiter + your email is? I can't seem to
> > remember...
>
> Are you talking ab
On 1/23/2009, hose (h...@bluemaggottowel.com) wrote:
> Can anyone tell me what the formal name of the email technique of
> placing something + a delimiter + your email is? I can't seem to
> remember...
Are you talking about 'plus-addressing'?
--
Best regards,
Charles
christopher andrews a écrit :
> I was reading this subject and I was wondering, if you thought about
> what would happen if you compile a list of misspelled domains and denied
> them instantly and the user mint to send it to one of those domains. I'm
> saying this because what you may think is miss
Thomas Ackermann a écrit :
> As older postfix installations have a "fallback_relay" variable and
> newer installations have a "smtp_fallback_relay", i wanted to use
> postconf to check, which version is supported.
>
> Usally, i would expect a program to return with a non-zero exit-code at
> such a
On Fri, Jan 23, 2009 at 07:24:08PM +0100, postfix wrote:
> The incoming queue was big and increased continually (> from 2000 to up
> to 5 messages)
Symptom.
> The active queue was full.
Cause.
> The traffic was not to too heavy ( <5,000- messages per 10 minutes).
> Trivial-rewrite is usin
Can anyone tell me what the formal name of the email technique of
placing something + a delimiter + your email is? I can't seem to
remember...
hose
Hi,
The incoming queue was big and increased continually (> from 2000 to up
to 5 messages)
The active queue was full.
The traffic was not to too heavy ( <5,000- messages per 10 minutes).
Trivial-rewrite is using LDAP lookups (locally) to route messages.
System CPU, disk or network were NOT st
ESTEVES, Luis:
> When I send an e-mail to a bad external address (example:
> jdhfjdfjdhfjdhfj...@yahoo.com), my SMTP gateway send me an error
> message from mailer-dea...@mydomain.com because the target address
> doesn't exist.
>
> Question: Do you know where I can change "mydomain.com" (after
> t
Hi all,
We are using Postfix and I have a little question.
When I send an e-mail to a bad external address (example:
jdhfjdfjdhfjdhfj...@yahoo.com), my SMTP gateway send me an error message from
mailer-dea...@mydomain.com because the target address doesn't exist.
Question: Do you know
On 1/23/2009 11:33 AM, bharathan kailath wrote:
>
> X-Spam-Status: No, score=2.797 tagged_above=2 required=5
> tests=[BAYES_00=-2.599, FORGED_MUA_OUTLOOK=3.116,
> FORGED_OUTLOOK_HTML=0.001, HTML_MESSAGE=0.001, MIME_HTML_ONLY=1.457,
> MSOE_MID_WRONG_CASE=0.82, NORMAL_HTTP_TO_IP=0.001]
>
> the abov
X-Spam-Status: No, score=2.797 tagged_above=2 required=5
tests=[BAYES_00=-2.599, FORGED_MUA_OUTLOOK=3.116, FORGED_OUTLOOK_HTML=0.001,
HTML_MESSAGE=0.001, MIME_HTML_ONLY=1.457, MSOE_MID_WRONG_CASE=0.82,
NORMAL_HTTP_TO_IP=0.001]
the above header details are of a message which was a spam; what does
Postfix snapshot 20090123 provides support for managing multiple
Postfix instances. It was designed, implemented and documented
during this week (implementation taking about 1/6 of that time).
Citing from the RELEASE_NOTES:
This can automatically apply your "postfix start" etc.
Hi Guys,
Just a question RE setting up the DNS zone record correctly for a mail
server.
I have a couple of setups which work but have just copied one and I'm
getting the following response.
: Host or domain name not found. Name service
error for name=watercooledsurf.com type=A: Host foun
> Is anyone using ClamAV with Postfix with the phishing filters?
> Are they effective?
>
> Does anyone know of any other service offering Phishing
> signatures that one can employ?
SaneSecurity (they're back) is providing ClamAV signatures for spam,
phishing, etc. Rsync scripts are available to d
Paul Reilly wrote:
Hello,
I know this is not specifically a postfix question, but I know there
are a lot of
very knowledgeable people on this list.
I'm wondering what success others have had blocking Phishing emails?
We can block them using header/body checks, but one is always playing
catch up
Hello,
I know this is not specifically a postfix question, but I know there
are a lot of
very knowledgeable people on this list.
I'm wondering what success others have had blocking Phishing emails?
We can block them using header/body checks, but one is always playing
catch up. It's a game you can
Noel Jones wrote:
Bill Loy wrote:
After adding the lines smtpd_recipient_restrictions =
check_sender_access hash:/etc/postfix/restricted_senders
smtpd_restriction_classes = local_only
local_only = check_recipient_access
hash:/etc/postfix/local_domains, reject
to t
Bill Loy wrote:
After adding the lines
smtpd_recipient_restrictions =
check_sender_access hash:/etc/postfix/restricted_senders
smtpd_restriction_classes = local_only
local_only =
check_recipient_access hash:/etc/postfix/local_domains, reject
to the file /etc/postf
Peter Micunek wrote:
Hi,
I have a strange problem with some email sessions.
Postfix 2.5.2 is configured like email router.
It receives emails from many sources and sends them to one destination.
Each rules for mail routing are done by transport table.
Everything works properly but somet
Richard Foley wrote:
This file is very minimal:
/^\@/ 550 invalid address
/[...@].*\@/550 weird addresses
Don't escape "@" in postfix regular expressions.
Don't escape characters inside "[ ]" classes.
/^@/550 invalid address
/[...@].
Schilling, Timo wrote:
Wietse Venema wrote:
Schilling, Timo:
Postfix shouldn't negate the flag (from 1 to 0) so that the function
"res_search" doesn't append the known domain-informations.
But it is done in the above mentioned file, but why?
Because it makes no sense to append MY OWN DOMAIN to
Jordi Espasa Clofent wrote:
Hi all,
I want to the authenticated users (who are authenticated using SASL2 and
SQL backend) don't pass to several filters detailed in master.cf file;
on the other hand, I want to still using the same filter for all the
remain world.
My first thought has been to
Hello,
i read the documentation about the usage of "[" and "]" in relayhost
entries ...
I still not quite sure what happens or not happens when using an IP with
or without such signs...
relayhost = 1.2.3.4
may use MX records from DNS?
What if there is no nameserver configured? Will there be
As older postfix installations have a "fallback_relay" variable and
newer installations have a "smtp_fallback_relay", i wanted to use
postconf to check, which version is supported.
Usally, i would expect a program to return with a non-zero exit-code at
such a failure:
r...@localhost# postcon
Zitat von Wietse Venema :
Peter Micunek:
Hi,
I have a strange problem with some email sessions.
Postfix 2.5.2 is configured like email router.
It receives emails from many sources and sends them to one destination.
Each rules for mail routing are done by transport table.
Everything works prope
Schilling, Timo:
> Wietse Venema wrote:
> > Schilling, Timo:
> >> Postfix shouldn't negate the flag (from 1 to 0) so that the function
> >> "res_search" doesn't append the known domain-informations.
> >> But it is done in the above mentioned file, but why?
> >
> > Because it makes no sense to appe
* Jordi Espasa Clofent :
> Hi all,
>
> I want to the authenticated users (who are authenticated using SASL2 and
> SQL backend) don't pass to several filters detailed in master.cf file;
> on the other hand, I want to still using the same filter for all the
> remain world.
>
> My first thought
Hi all,
I want to the authenticated users (who are authenticated using SASL2 and
SQL backend) don't pass to several filters detailed in master.cf file;
on the other hand, I want to still using the same filter for all the
remain world.
My first thought has been to create another smtpd daemon
Wietse Venema wrote:
> Schilling, Timo:
>> Postfix shouldn't negate the flag (from 1 to 0) so that the function
>> "res_search" doesn't append the known domain-informations.
>> But it is done in the above mentioned file, but why?
>
> Because it makes no sense to append MY OWN DOMAIN to
> the host
On Friday 23 January 2009 11:32:04 ram wrote:
>
> On Fri, 2009-01-23 at 11:04 +0100, Richard Foley wrote:
> > Hi postfix profis,
> >
> > I'm running postfix 2.1.5-9
>
> If it isnt broken , dont fix it :-)
>
Sage advice :-)
> If you are seeing a lot of reject lines ( because of spamhaus ? ). Th
Peter Micunek:
> Hi,
> I have a strange problem with some email sessions.
> Postfix 2.5.2 is configured like email router.
> It receives emails from many sources and sends them to one destination.
> Each rules for mail routing are done by transport table.
>
> Everything works properly but
Guy:
> Hi,
>
> I added the following line to main.cf but the server name was still
> appended to an incomplete sender address.
> content_filter = smtp-amavis:[127.0.0.1]:10024
You're appending it on return from the filter.
Don't list the local machine as a local rewrite client.
Wiets
Schilling, Timo:
> Postfix shouldn't negate the flag (from 1 to 0) so that the function
> "res_search" doesn't append the known domain-informations.
> But it is done in the above mentioned file, but why?
Because it makes no sense to append MY OWN DOMAIN to
the hostname from a REMOTE client.
On Fri, 2009-01-23 at 09:06 -0300, Reinaldo de Carvalho wrote:
> On Fri, Jan 23, 2009 at 8:54 AM, Martin Spinassi
> wrote:
> >
> > Reinaldo, I'll check korreio. I need to see if it's possible to do it
> > remotely, I don't want to install X on a production server.
> >
>
> Korreio manage the queue
On Thu, 2009-01-22 at 15:16 -0600, Noel Jones wrote:
> Martin Spinassi wrote:
> > Hi list!
> >
> > I've been using postfix since a few weeks. I always used qmail before
> > for mail servers, and I'm really impressed by postfix but there is
> > something that I really miss...
> >
> > I use to use
On 1/21/2009, Victor Duchovni (victor.ducho...@morganstanley.com) wrote:
> Your question cannot be answered based just on the data you have
> provided.
Many thanks for the response Victor... I've been trying to digest it
fully... I thought I had a good, basic understanding of the different
address
On 1/21/2009 8:46 AM, Charles Marcus wrote:
> I try to keep my postconf -n output clean/small by not explicitly
> setting anything that is not different from the default (postconf -d),
> and I just noticed that my postconf -n output contains the following:
>
> config_directory = /etc/postfix
>
>
On Fri, 2009-01-23 at 11:04 +0100, Richard Foley wrote:
> Hi postfix profis,
>
> I'm running postfix 2.1.5-9 for several domains. Of course it handles the
> workload with ease, but when I tail the mail.log the screen scrolls
> constantly as it's just rejecting spam every second. The good thin
Hi,
I added the following line to main.cf but the server name was still
appended to an incomplete sender address.
remote_header_rewrite_domain =
When I changed the line to
remote_header_rewrite_domain = domain.invalid
it started working.
According to the documentation the entry with no actual do
Hi,
I have a strange problem with some email sessions.
Postfix 2.5.2 is configured like email router.
It receives emails from many sources and sends them to one destination.
Each rules for mail routing are done by transport table.
Everything works properly but sometimes some emails are "b
Hi postfix profis,
I'm running postfix 2.1.5-9 for several domains. Of course it handles the
workload with ease, but when I tail the mail.log the screen scrolls
constantly as it's just rejecting spam every second. The good thing is that
all these accesses are rejected, and logged. Also good
Victor Duchovni wrote:
> On Thu, Jan 22, 2009 at 12:57:30PM +0100, Schilling, Timo wrote:
>
>> Hello to everybody,
>>
>> while we use the option "reject_unknown_helo_hostname" we noticed, that
>> single hostnames will be rejected without contacting the dns-servers.
>> After some debugging of the s
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