Postfix configuration

RomanG · 04-02-2005, 08:05 AM

Hello! Sorry for so dumb question, but, but I do not know anyone who can help me...
I want to decrease CPU and memory usage on my computer. So how to setup Postfix, if I want it only to send about 2-8 messages in a day with program 'sendmail', and I do not need to receive any. I see that it runs many processes and suggest that I do not need at least half of them.
Please, help..

acid_kewpie · 04-02-2005, 09:52 AM

these are seperate processes to perform different functions of the MTA, they will use NO resources when not being used. use programs like "top" to see what actually IS using up the CPU.

RomanG · 04-02-2005, 10:36 AM

Thank you for replying, acid_kewpie!

Here are 'ps aux | grep postfix' results:

Code:

root      1656  0.0  0.3  1612  612 ?        Ss   Jan10   0:55 syslogd -m 0 -a /var/spool/postfix/dev/log
root      1898  0.0  0.6  2760 1060 ?        Ss   Jan10   0:01 /usr/lib/postfix/master
postfix  14343  0.0  0.7  2908 1104 ?        S    Jan10   0:01 qmgr -l -t fifo -u -c
postfix  14344  0.0  0.9  4128 1468 ?        S    Jan10   0:06 tlsmgr -l -t fifo -u -c
postfix  29213  0.0  0.6  2876 1076 ?        S    19:29   0:00 pickup -l -t fifo -u -c -o content_filter  -o receive_override_options

and here are some 'top' results:

Code:

Mem:    157208k total,   144368k used,    12840k free,    61524k buffers
Swap:   385520k total,      128k used,   385392k free,    50796k cached

Code:

14344 postfix   16   0  4128 1468 3928 S  0.0  0.9   0:06.55 tlsmgr
14343 postfix   16   0  2908 1104 2724 S  0.0  0.7   0:01.90 qmgr
29213 postfix   16   0  2876 1076 2692 S  0.0  0.7   0:00.06 pickup
1898 root      16   0  2760 1060 2576 S  0.0  0.7   0:01.71 master

... top CPU users are Asterisk IP PBX, mpg123, bash, sshd and then Postfix processes goes.
As I need only to send some 2-8 e-mails in a day (with 'sendmail -t' command), do I really need to run Postfix? Or there are some another solutions?
Thank you again. Thank you...

RomanG · 04-02-2005, 01:10 PM

Offtopic: Kitties are the best, acid_kewpie!...
(http://untrepid.com/?page=gallery or http://untrepid.com/gallery/albums/hello_kitties/)

acid_kewpie · 04-03-2005, 04:41 AM

hehe thanks... they're sitting on the window sill infornt of me at the moment... smelly buggers.

as for postfix... you can see there that the memory and CPU usage is so so negligible.. i really wouldn't worry.

RomanG · 04-03-2005, 06:47 AM

Oki, I found that it is 10Mbit/s ethernet IDE card sometimes makes access slow. But is there any replacement for Postfix 'sendmail -t' that I can launch only when I want to send e-mail?

Offtopic: please, look at http://forum.kgts.ru/viewtopic.php?t=275 and say some comments about this IRC private (I gave back that site to his owner). And... I am not a hacker...
Say Hello to kitties!!!

acid_kewpie · 04-04-2005, 07:25 AM

ok, there are virtual smtp servers, like ssmtp, which ACT like smtp servers but actually aren't, and only relay to a real server. maybe that's the sort of thing you're after...

trickykid · 04-04-2005, 07:38 AM

If you don't necessarily need to recieve email ever and are using sendmail and postfix currently, in what you've described, you don't necessarily need postfix running at all.