Slow Email

[GhostHunt]

ver: Plesk Control Panel version psa v8.6.0_build86081001.10 os_Debian 4.0, Courier, Qmail

Need some help. Sending email is really slow. I connect to imap (courier) using Thunderbird
it can take 30-60 seconds to send plain small text emails. its amazingly slow. I need
some new ideas on what to check. I am out od ideas


I have checked the following and made changes accordingly.
1) qmail is slow if /var/qmail/queue/lock/trigger is gone/has the wrong permissions/is a regular file.Checked looks OK
2) /etc/courier-imap/imapd for MAXDAEMONS from 40 to 80 and MAXPERIP from 4 to 40
3)/etc/inetd.conf for -Rt0
smtp stream tcp nowait.1000 root /var/qmail/bin/tcp-env tcp-env /usr/bin/env SMTPAUTH=1 END=1 -Rt0 /var/qmail/bin/relaylock /var/qmail/bin/qmail-smtpd /var/qmail/bin/smtp_auth /var/qmail/bin/true /var/qmail/bin/cmd5checkpw /var/qmail/bin/true
smtps stream tcp nowait.1000 root /var/qmail/bin/tcp-env tcp-env /usr/bin/env SMTPAUTH=1 END=1 -Rt0 /var/qmail/bin/relaylock /var/qmail/bin/qmail-smtpd /var/qmail/bin/smtp_auth /var/qmail/bin/true /var/qmail/bin/cmd5checkpw /var/qmail/bin/true