Re: Blocking Spam

Bijayant Kumar --- On Tue, 6/1/09, DJ Lucas wrote: > From: DJ Lucas > Subject: Re: Blocking Spam > To: postfix-users@postfix.org > Date: Tuesday, 6 January, 2009, 2:00 PM > bijayant kumar wrote: > > Bijayant Kumar > > > > > > --- On Tue, 6/1/09, DJ Lucas > wrote: > > > > > >> From: DJ

Re: Preventing relay of multiple recipients or cc to multiple recipients

On Thu, Jan 08, 2009 at 06:56:55AM +0100, Bas van Reeuwijk wrote: > Hi Victor, > > Thanks for you very quick an accurate reply. > > I was indeed using -t in my contentfilter script and was generally looking > in the wrong direction. > > That leaves me with one question in the sample script at >

Re: Preventing relay of multiple recipients or cc to multiple recipients

Hi Victor, Thanks for you very quick an accurate reply. I was indeed using -t in my contentfilter script and was generally looking in the wrong direction. That leaves me with one question in the sample script at http://www.postfix.org/FILTER_README.html#simple_filter it reads: # Localize these.

Re: Preventing relay of multiple recipients or cc to multiple recipients

On Thu, Jan 08, 2009 at 06:17:44AM +0100, Bas van Reeuwijk wrote: > Good morning all, > > Over the last couple of days I've been at work trying to secure my postfix > mail-server. It's a small private e-mail server. > > I've used http://jimsun.linxnet.com/misc/postfix-anti-UCE.txt as a guide > a

Preventing relay of multiple recipients or cc to multiple recipients

Good morning all, Over the last couple of days I've been at work trying to secure my postfix mail-server. It's a small private e-mail server. I've used http://jimsun.linxnet.com/misc/postfix-anti-UCE.txt as a guide and I see that a lot of spam is rejected at the gate (before it is handled by spam

"forcing" authenticated users to use port 587?

Hi: Based on good practice and the help and urging of some of the gurus on this list, I am moving my users to using the submission service (port 587) instead of port 25 to send mail from their mail clients. Once most of them move, I'd like to start warning the ones who don't that they shoul

Re: queue buildup

Thanks for the help. Messages got delivered. On Wed, Jan 7, 2009 at 7:38 PM, Terry Carmen wrote: > Multilinks.com is undeliverable for some reason. > > postqueue -p will tell you why, however unless it's a routing problem, you > don't need to do anything. As the messages get older, they'll expi

Re: About bounce nonexist mx server mails

On Thu, Jan 8, 2009 at 12:26 AM, tony liu wrote: > Hello, > > When my customers send mails with nonsexist domain(sometimes maybe typo > error, EX. u...@hotmail.org ), these mails will be rejected and in queue for > a long time(normally 5 days), Is there a way for postfix to remove these > mails

Re: email retry problem

Dear Jorey Bump Actually,we can authenticate emails which use our domain as sender but our mailserver must act as mailfilter for our customer's mailserver.sometime spams are sended from our customer 's mailserver.we can not force them to use submission in their organization and we do not have info

About bounce nonexist mx server mails

Hello, When my customers send mails with nonsexist domain(sometimes maybe typo error, EX. u...@hotmail.org ), these mails will be rejected and in queue for a long time(normally 5 days), Is there a way for postfix to remove these mails immediately or just send a bounce mails to the sender? T

multiple e-mails on from:

I have a Postfix setup which runs several mailman lists. I'm getting in the headers: From: nore...@domain.com, r...@www.domain.com and also: Return-Path: www-d...@www.domain.com the list server works fine otherwise. The mailman list guys told me to look in my Postfix config. What do I need to s

Re: fatal: open file trace :Permission denied

I'd say, run "postfix set-permissions" and if that does not do the job, kill off or update SELINUX, APPARMOR, etc. Wietse

fatal: open file trace :Permission denied

Today a message registered an unfamiliar error in postfix: Jan 7 20:10:26 geulah postfix/smtpd[2021]: connect from host67.72.248.165.conversent.net[72.248.165.67] Jan 7 20:10:28 geulah postfix/smtpd[2021]: 0C846439E2: client=host67.72.248.165.conversent.net[72.248.165.67] Jan 7 20:10:28 geula

Re: CDB map files for virtual alias maps

On Wed, Jan 7, 2009 at 11:14 AM, Wietse Venema wrote: > ram: >> >> So that seems to be it. I would really need to compile an "authentic" >> postfix version. Can you give me a link to source RPM of 2.5.5 for >> centos 5 > > The authentic Postfix source code is released via > http://www.postfix.org/

Re: Question regarding reject_unlisted_sender

Wietse Venema wrote: > Bill Landry: >> I'm following a discussion on another list regarding a Communigate >> gateway that is rejecting spoofed "MAIL FROM" before "RCPT TO" is >> received. > > This is perfectly legitimate usage of SMTP. Clients that cannot > handle this are broken. > > Postfix's d

Re: email retry problem

jittinan suwanrueangsri wrote, at 01/07/2009 02:15 PM: > In our environment > 1. a user can not connect to other mailserver directly such as gmail,aol > etc. except our mailserver. > 2. a user have right to use his/her other domain sender (aol,gmail) in > message which have to relay via our mailse

Re: email retry problem

jittinan suwanrueangsri wrote: Dear Noel Jones In our environment 1. a user can not connect to other mailserver directly such as gmail,aol etc. except our mailserver. 2. a user have right to use his/her other domain sender (aol,gmail) in message which have to relay via our mailserver.if our p

Re: escape characters when inserting into a table

Evan Platt a écrit : > Am I missing what this has to do with postfix, or is it just me? > the classical "MUA address completion" problem. he typed "post" by his MUA completed to postfix... and he didn't notice. > At 09:56 AM 1/7/2009, you wrote: >> Hi All, >> >> My apologies if I sent the wrong

[SPAM] unsubscribe

Re: email retry problem

Dear Noel Jones In our environment 1. a user can not connect to other mailserver directly such as gmail,aol etc. except our mailserver. 2. a user have right to use his/her other domain sender (aol,gmail) in message which have to relay via our mailserver.if our policy allow user to send only our se

Re: Question regarding reject_unlisted_sender

Bill Landry wrote, at 01/07/2009 01:11 PM: > However, RFCs 2821 & 5321 seem to state that rejection after "MAIL TO" > is valid and should be properly handled by the sending server. So my > question is why does Postfix waits until after the "RCPT TO" phase > before rejecting the sender address?

Re: Question regarding reject_unlisted_sender

Bill Landry: > I'm following a discussion on another list regarding a Communigate > gateway that is rejecting spoofed "MAIL FROM" before "RCPT TO" is > received. This is perfectly legitimate usage of SMTP. Clients that cannot handle this are broken. Postfix's delayed "reject" works around broken

Question regarding reject_unlisted_sender

I'm following a discussion on another list regarding a Communigate gateway that is rejecting spoofed "MAIL FROM" before "RCPT TO" is received. I posted a sample SMTP exchange showing that Postfix rejects spoofed senders (via reject_unlisted_sender) after the "RCPT TO" stage: 220 mail.inetmsg.com

Re: escape characters when inserting into a table

My apologies, was meant for another list. On Wed, Jan 7, 2009 at 9:01 PM, Magnus Bäck wrote: > On Wednesday, January 07, 2009 at 18:56 CET, > Otandeka Simon Peter wrote: > > > My apologies if I sent the wrong question but I need your help. > > > > I am using perl + postgres in an app am wr

Re: escape characters when inserting into a table

On Wednesday, January 07, 2009 at 18:56 CET, Otandeka Simon Peter wrote: > My apologies if I sent the wrong question but I need your help. > > I am using perl + postgres in an app am writing. However I am failing to > find a function to escape characters just like you use addslashes in php.

Re: escape characters when inserting into a table

Am I missing what this has to do with postfix, or is it just me? At 09:56 AM 1/7/2009, you wrote: Hi All, My apologies if I sent the wrong question but I need your help. I am using perl + postgres in an app am writing. However I am failing to find a function to escape characters just like you

escape characters when inserting into a table

Hi All, My apologies if I sent the wrong question but I need your help. I am using perl + postgres in an app am writing. However I am failing to find a function to escape characters just like you use addslashes in php. Do I have to use a regex expression to do that or there is a function to use.

Re: email retry problem

jittinan suwanrueangsri wrote: Please press the [Plain Text] button when posting from gmail. Dear sir I assume these conditions are true. 1.sample domain: test.com 2.test.com has one mx is called mail.test.com 3.mail.test.com

Re: Problem with notifications

Michael JOLY: > Hello, > > I have a problem. When i sent a mail to mailboxes of my domain and i > request notifications of delivery, i receive two notifications : one says > that the message is delivered (that's right) and another that tells the > message has not been delivered. Postfix delivery

Problem with notifications

Hello, I have a problem. When i sent a mail to mailboxes of my domain and i request notifications of delivery, i receive two notifications : one says that the message is delivered (that's right) and another that tells the message has not been delivered. This is an extract of the two notification

Re: CDB map files for virtual alias maps

ram: > > With all Postfix versions, the postmap command by default always > > case folds CDB lookup keys, both on create and on query. > > > > If someone is distributing "improved" Postfix versions then you > > need to file a complaint. > > > > So that seems to be it. I would really need to comp

Re: CDB map files for virtual alias maps

On Wed, 2009-01-07 at 08:25 -0500, Wietse Venema wrote: > ram: > > > > On Tue, 2009-01-06 at 09:57 -0500, Victor Duchovni wrote: > > > On Tue, Jan 06, 2009 at 07:58:07PM +0530, ram wrote: > > > > > > > [r...@50.133 postfix]# postmap -q t...@netcore.co.in > > > > cdb:/etc/postfix/vmap > > > > r.

Re: queue buildup

Multilinks.com is undeliverable for some reason. postqueue -p will tell you why, however unless it's a routing problem, you don't need to do anything. As the messages get older, they'll expire and be returned to the sender. Terry punit jain wrote: Hi All, My mail server has due to some re

Re: CDB map files for virtual alias maps

On Wed, 2009-01-07 at 08:25 -0500, Wietse Venema wrote: > ram: > > > > On Tue, 2009-01-06 at 09:57 -0500, Victor Duchovni wrote: > > > On Tue, Jan 06, 2009 at 07:58:07PM +0530, ram wrote: > > > > > > > [r...@50.133 postfix]# postmap -q t...@netcore.co.in > > > > cdb:/etc/postfix/vmap > > > > r..

Re: CDB map files for virtual alias maps

ram: > > On Tue, 2009-01-06 at 09:57 -0500, Victor Duchovni wrote: > > On Tue, Jan 06, 2009 at 07:58:07PM +0530, ram wrote: > > > > > [r...@50.133 postfix]# postmap -q t...@netcore.co.in cdb:/etc/postfix/vmap > > > r...@netcore.co.in > > > [r...@50.133 postfix]# postmap -q t...@netcore.co.in cdb:

email retry problem

Dear sir I assume these conditions are true. 1.sample domain: test.com 2.test.com has one mx is called mail.test.com 3.mail.test.com host is down if some one relay an email which sender is some...@test.com ,recipients is some...@test.com via one mailrelay server.After mailserver recieve a messa

Re: CDB map files for virtual alias maps

ram wrote: > On Tue, 2009-01-06 at 09:57 -0500, Victor Duchovni wrote: >> On Tue, Jan 06, 2009 at 07:58:07PM +0530, ram wrote: >> >>> [r...@50.133 postfix]# postmap -q t...@netcore.co.in cdb:/etc/postfix/vmap >>> r...@netcore.co.in >>> [r...@50.133 postfix]# postmap -q t...@netcore.co.in cdb:/etc/p

Re: queue buildup

* punit jain : > Hi All, > > My mail server has due to some reasons queued plenty of mails: - Why? Check your logs. > I want to flush mails for one specific domain, basically > multilinks.comwhich have been queued for long time. I was thinking of > running postqueue -s > multilinks.com but it s