The traffic is low, about 100 mails / 24h. Although the hardware is
pretty weak, but for this load I guess it should be enough:
top - 15:56:55 up 3:09, 1 user, load average: 0.00, 0.00, 0.00
Tasks: 127 total, 1 running, 126 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si,
0.0%st
Mem: 255436k total, 239236k used, 16200k free, 18532k buffers
Swap: 522104k total, 17992k used, 504112k free, 29552k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4245 root 15 0 2336 1040 800 R 0.7 0.4 0:00.11 top
1 root 15 0 2072 628 540 S 0.0 0.2 0:00.44 init
2 root RT -5 0 0 0 S 0.0 0.0 0:00.00 migration/0
3 root 39 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/0
4 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/0
5 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 events/0
6 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 khelper
7 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kthread
10 root 10 -5 0 0 0 S 0.0 0.0 0:00.02 kblockd/0
11 root 20 -5 0 0 0 S 0.0 0.0 0:00.00 kacpid
83 root 20 -5 0 0 0 S 0.0 0.0 0:00.00 cqueue/0
86 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 khubd
88 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kseriod
149 root 15 0 0 0 0 S 0.0 0.0 0:00.03 pdflush
On 11.04.2010 13:45, Martin Waschbuesch wrote:
That sounds like something else then.
Connect from localhost, at the very least, should be fast.
Is there already a lot of traffic on the system? What's the load of the smtp
process?
Is there a chance that there is a large number of concurrent smtp connections
already?
Martin
Am 11.04.2010 um 11:58 schrieb Istvan Köpe:
Sending mail takes long. Connecting from telnet(from anywhere) takes long.
Receiving mail(POP3) is fast.
After hitting enter after telnet, I have the prompt instantly, but it takes
about 30 sec to get the welcome message.
I.
On 11.04.2010 12:44, Martin Waschbuesch wrote:
Just to get this clear, it is not sending or receiving that takes so long, but
your actual connection attempt via telnet takes that long?
E.g. from hitting enter after 'telnet 127.0.0.1 25' to the prompt coming on?
Martin
Am 11.04.2010 um 11:41 schrieb Istvan Köpe:
The reverse DNS will be set in the next few days.
I also removed everything form blacklists. Even if I change in the simcontrol
clam=no,spam=no and I do "telnet 127.0.0.1 25" it takes 30s
What does telnet 127.0.0.1 25 has to do with DNS or reverse DNS?
I.
On 11.04.2010 12:29, Martin Waschbuesch wrote:
Hi there,
Reverse lookup on your IP is not possible yet?
That would be a VERY bad idea for any mail server.
It is highly likely that in addition to slow performance, a lot of recipients
would block your outgoing mails as phishing or spam.
Martin
Am 11.04.2010 um 11:20 schrieb Istvan Köpe:
The reverse DNS is not set yet. Can this be a reason for the slow response?
I.
On 11.04.2010 11:33, Istvan Köpe wrote:
Hello,
Yesterday I installed a fresh Qmail Toaster box on Centos 5.4 according to wiki.
The box works fine, but the SMTP is very slow. You have to wait about 30sec to
send a blank message, no matter if you connect from LAN or from the internet.
I have the same response if I telnet on port 25. Even if I telnet 127.0.0.1 25
I setup bind as caching-nameserver, no change. I tried with djbdns, no change.
The server is behind an ADSL router with ports 22, 25 and 80 forwarded.
I also tried putting the server in DMZ, no change.
I out of ideas. I don't know where to look for the problem.
Please give me a clue.
Thanks!
Istvan
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