qmail says out of memory during smtp auth

[hariskhan]

Hello,

qmail says;

421 out of memory (#4.3.0)

during smtp auth, when I give it the auth plain string.

1) smtp auth is again not working
2) how do I fix the out of memory issue? There is no softlimit binary on the server. There is qmail-smtpd/run to put the new memory limit in.

here is my /etc/xinetd.d/smtp_psa;

# cat /etc/xinetd.d/smtp_psa

service smtp
{
socket_type = stream
protocol = tcp
wait = no
disable = no
user = root
instances = UNLIMITED
server = /var/qmail/bin/tcp-env
server_args = -Rt 0 /usr/sbin/rblsmtpd -r zen.spamhaus.org /var/qmail/bin/relaylock /var/qmail/bin/qmail-smtpd /bin/checkpassword -x /etc/tcp.smtpd.cdb /var/qmail/bin/smtp_auth /var/qmail/bin/true /var/qmail/bin/cmd5checkpw /var/qmail/bin/true
}


How do I fix it?

 

[dynamicnet]

Greetings:

Are you running Plesk / qmail in a VPS node? Or on a dedicated / co-located server?

What does top show for total memory, free memory, total swap space, and free swap space?

What's your average number of emails processed per day?

Thank you.

 

[hariskhan]

This is a dedicated server running plesk 8.1

I just rebooted the box 2nd time in two days. Top still shows, 700 MB out of 1 GB RAM is free. 4GB swap is 0% used.

Following is a df -ah output;

# d
Filesystem Size Used Avail Use% Mounted on
/dev/md1 950M 313M 589M 35% /
none 0 0 0 - /proc
devpts 0 0 0 - /dev/pts
/dev/md5 4.7G 1.5G 3.2G 32% /usr
/dev/md7 137G 4.2G 133G 4% /var
/dev/md6 4.7G 64M 4.6G 2% /home
none 493M 0 493M 0% /tmp
none 0 0 0 - /proc/sys/fs/binfmt_misc
/proc 0 0 0 - /var/named/run-root/proc


My average mails are like 1 mail per 5mins. or so. Most of them are spam. There's little load on the server.

As I recall, this started happening after I manually restarted the xinetd daemon. Can't see the relevance though

Does plesk provide anyway to tell qmail how much memory it can use? There's no softlimit binary or qmail-smtpd/run file to specify it in.

If there's no way, I'll be forced to remove psa's installed qmail and re-build from scratch as the lwq manual says.

 

[hariskhan]

After this last reboot the out of memory message is gone.

But smtp auth fails no matter what. I'v checked it against several local accounts that already exist. I have also created new accounts on two different domains and still it says;

220 host.domain.com ESMTP

ehlo egghut.com
250-host.domain.com
250-AUTH=LOGIN CRAM-MD5 PLAIN
250-AUTH LOGIN CRAM-MD5 PLAIN
250-PIPELINING
250 8BITMIME
AUTH PLAIN auth-code-long-hash-value
535 auth failure
quit
221 host.domain.com
closed

Why would auth fail?

 

[hariskhan]

Re-installation of psa-qmail rpm fixed all. Its working normally now.

M. Istehbab