Patch IB Driver to ISOLINUX at Rocks Installation Time

2012-02-03 Thread Jacky Chan
hare about? Thank you very much for your valuable time! Yours Sincerely, Jacky Chan - CHAN Hoi Kei, Jacky Technical and User Support Section Information and Communication Technology Office University of Macau DL: (853) 8397 8629 | FAX: (853) 2883 5606

bounce & local process consumes high CPU usage

2010-03-09 Thread Jacky Chan
Hi there, I'm running Postfix 2.3.3 and Redhat 5.3 ... the server daily receive 2 ~ 3 messages. And Dovecot IMAP & POP3 services run on the same server. I found recently found that bounce, local, procmail and occasionally flush and smtp occupies all CPU usage and result Postfix send/rece

Message Size Limit Exceed

2009-07-14 Thread Jacky Chan
Hi all, I would like to ask if the size of message exceeds the one defined in main.cf, how can I configure Postfix to generate a bounce or error notice to user/admins? Thank you very much! Best, Jacky -- View this message in context: http://www.nabble.com/Message-Size-Limit-Exceed-tp24476172p

Re: Email in Active Queue without delivery attempts

2009-06-24 Thread Jacky Chan
Victor Duchovni wrote: > > On Tue, Jun 23, 2009 at 07:57:00PM -0700, Jacky Chan wrote: > > The rate_delay feature was repaired in Postfix 2.5.7. All users of > this feature should be using a Postfix release with a mail_release_date > after 20090305. > > +20090305 >

Email in Active Queue without delivery attempts

2009-06-23 Thread Jacky Chan
Dear all, First thx for your help, I implemented a slow mail queue to yahoo in my Postfix 2.5.5 installation. I encountered this issue, some emails to yahoo queued up (just 10 message) at active queue without delivery attempt for 1280. I don't sure why cause it. So I try to manually delivery one

Performance Concerns

2009-03-25 Thread Jacky Chan
Hi all, I am setup Postfix 2.5 to run on Linux box with 2 x 1.2 G PIII and 1280MB RAM server. I also setup a list of firewall rules (iptables) for restricting port 25 access. In compare of own access table in Postfix, which way has better performance when the server is high-loaded? I noticed tha

Re: Postfix - Yahoo parameters settings

2009-03-24 Thread Jacky Chan
Ashwin Muni wrote: > > Can anybody help me solving this issue. I have a major setback with > sendgin > mails with yahoo. Is there any parameter or any rule to be followed for > sending mails to yahoo and hotmail as they normally deffer our mails quite > oftenly. > > ===

Re: Does main.cf need world readable?

2009-03-08 Thread Jacky Chan
Sahil Tandon wrote: > > > On Mar 8, 2009, at 11:47 PM, Jacky Chan wrote: > >> I found when I set main.cf to 740, owner is root and group is postfix. >> >> [11:41:55][use...@nx1:~]# echo "testing" | mail -s "testing" root >> [11:4

Does main.cf need world readable?

2009-03-08 Thread Jacky Chan
Hi all, I found when I set main.cf to 740, owner is root and group is postfix. [11:41:55][use...@nx1:~]# echo "testing" | mail -s "testing" root [11:41:58][use...@nx1:~]# send-mail: fatal: open /etc/postfix/main.cf: Permission denied Does main.cf need world readable? If so, the setting in main.

Re: Defer Retry

2009-01-29 Thread Jacky Chan
421 Message from (161.64.2.15) temporarily deferred - 4.16.50. Please refe r to http://help.yahoo.com/help/us/mail/defer/defer-06.html) Victor Duchovni wrote: > > On Thu, Jan 29, 2009 at 05:52:09PM -0800, Jacky Chan wrote: > >> >> Thx, I did "postfix reload". >>

Re: Defer Retry

2009-01-29 Thread Jacky Chan
Thx, I did "postfix reload". How do I verify the _failed_cohort_limit = 0 is been taking effect since postconf doesn't show self-defined transport parameter. Wietse Venema wrote: > > Jacky Chan: >> >> I tried to set slow_destination_concurrency_failed_cohor

Re: Defer Retry

2009-01-29 Thread Jacky Chan
oo.com[216.39.53.3] refused to talk to me: 421 Message from (161.64.2.15) temporarily deferred - 4.16.50. Please refer to http://help.yahoo.com/help/us/mail/defer/defer-06.html) Victor Duchovni wrote: > > On Thu, Jan 29, 2009 at 12:47:42AM -0800, Jacky Chan wrote: > >>

Defer Retry

2009-01-29 Thread Jacky Chan
Hi all, I implemented slow transport with delay of 5 mins in Postfix 2.5, when my client send a lot of messages at a time, I notice that Postfix active queued queued most of this messages. A symptom occurs when one of the slow transport destination MX temporarly defered the current processing mes

Message Count on an IP

2009-01-28 Thread Jacky Chan
Hi all, May I know in Postfix, how can I retrieve the messages count on an IP over defined period of time? Because I want to implement the policy control over that IP, to control, let's say can only send mail 100 emails over 3600 seconds. And as I searched this mailling list, some users suggest p

Re: Create Custom Mail Queue

2009-01-21 Thread Jacky Chan
Victor Duchovni wrote: > > On Wed, Jan 21, 2009 at 09:45:08AM +0100, Ralf Hildebrandt wrote: > >> * Jacky Chan : >> > >> > Dear all, >> > >> > Can I create custom mail queue in /var/spool/postfix to hold the mails >> for >> >

Create Custom Mail Queue

2009-01-20 Thread Jacky Chan
Dear all, Can I create custom mail queue in /var/spool/postfix to hold the mails for specific detinsation and schedule to deliver one by one for period of time, let's say 2 mins. Thanks, Jacky -- View this message in context: http://www.nabble.com/Create-Custom-Mail-Queue-tp21577217p21577217.h

Re: Upon IP address, restrict sending destination.

2009-01-20 Thread Jacky Chan
Magnus Bäck wrote: > > On Tuesday, January 20, 2009 at 03:33 CET, > Jacky Chan wrote: > >> Yeap, I finally got your idea. And I don't expect that is such easy to >> configure. >> Indeed for mynetwork parameter, I do have a list of IP to be >> re

Re: Upon IP address, restrict sending destination.

2009-01-19 Thread Jacky Chan
Noel Jones-2 wrote: > > Jacky Chan wrote: >> Dear All, >> >> As subject. Does the following configuration meet the subject? >> 192.168.1.55 and 192.168.1.56 can only send mail to subdomain1.abc.com, >> subdomain2.abc.com >> And ot

Re: Upon IP address, restrict sending destination.

2009-01-18 Thread Jacky Chan
Magnus Bäck wrote: > > On Monday, January 19, 2009 at 05:11 CET, > Jacky Chan wrote: > >> As subject. Does the following configuration meet the subject? >> 192.168.1.55 and 192.168.1.56 can only send mail to subdomain1.abc.com, >> subdomain2.abc.com >>

Upon IP address, restrict sending destination.

2009-01-18 Thread Jacky Chan
Dear All, As subject. Does the following configuration meet the subject? 192.168.1.55 and 192.168.1.56 can only send mail to subdomain1.abc.com, subdomain2.abc.com And others IP in 192.168.1.0/24 can send mail to subdomain1.abc.com, subdomain2.abc.com and outsiders, is that achieved b

Re: Restriction Upon IP

2009-01-18 Thread Jacky Chan
Noel Jones-2 wrote: > > Jacky Chan wrote: >> Dears, >> >> I have serveral digital senders (scanning machine) on site, which relay >> my >> Postfix 2.5 as default email gateway. From my requirment, they can only >> send >> mail to INTRANET, I ne

Restriction Upon IP

2009-01-18 Thread Jacky Chan
Dears, I have serveral digital senders (scanning machine) on site, which relay my Postfix 2.5 as default email gateway. From my requirment, they can only send mail to INTRANET, I need to restrict those machines from sending mails to Internet. Currently, I setup a user based restriction but with

Re: Why I set a specific transport parameter on show up?

2008-11-13 Thread Jacky Chan
Yes, so how can I know the user-defined parameter takes effect? Thank you mouss-2 wrote: > > Jacky Chan wrote: >> Hi all, >> >> I would like to set a specific tranport for mail sending to yahoo, which >> slow it down to avoid getting greylisted. > > why?

How can setup a dedicated transport to slow down output-rate to yahoo in Postfix 2.3?

2008-11-13 Thread Jacky Chan
Victor Duchovni wrote: > > > If your prorblem is output-rate or destination concurrency, you are using > the wrong tool. > > As subject, yeap, I actually want to setup such kind of transport to avoid getting greylist from yahoo. As I know, Postfix 2.5 has destination_rate_delay, it can slow

Why I set a specific transport parameter on show up?

2008-11-13 Thread Jacky Chan
Hi all, I would like to set a specific tranport for mail sending to yahoo, which slow it down to avoid getting greylisted. I set a dedicated transport in master.cf like slow unix - - n - 1 smtp And set the pre-transport parameters in main.cf like slow_destin