Question : Postfix error log

(I am running Postfix + MailScanner + SpamAssassin)

Just want to send over 500 mail to clients, the postfix service had been stopped after around 200 mail has been sent.; and found some error from maillog. In fact, it should stop the heavy traffic...?


- Maillog -
Jan 10 18:29:31 mail postfix/master[9126]: warning: /usr/libexec/postfix/scache: bad command startup -- throttling
Jan 10 18:29:31 mail postfix/bounce[26582]: fatal: setuid(89): Resource temporarily unavailable
Jan 10 18:29:32 mail postfix/master[9126]: warning: process /usr/libexec/postfix/bounce pid 26582 exit status 1
Jan 10 18:29:32 mail postfix/master[9126]: warning: /usr/libexec/postfix/bounce: bad command startup -- throttling
Jan 10 18:29:32 mail postfix/smtpd[26583]: fatal: setuid(89): Resource temporarily unavailable
Jan 10 18:29:33 mail postfix/showq[26584]: fatal: setuid(89): Resource temporarily unavailable
Jan 10 18:29:33 mail postfix/master[9126]: warning: process /usr/libexec/postfix/smtpd pid 26583 exit status 1
Jan 10 18:29:33 mail postfix/master[9126]: warning: /usr/libexec/postfix/smtpd: bad command startup -- throttling


It also has the error message when restart MailScanner (Postfix)
"Can't set UID 89 at /usr/sbin/MailScanner line 1158."

"fatal: setuid(89): Resource temporarily unavailable"  ???
"warning: /usr/libexec/postfix/smtpd: bad command startup -- throttling" ???


Can tell me what is it and how to solve it ?  Thanks !

Answer : Postfix error log

what distro are you using.  I saw a couple of posts elsewhere where this might be cause by system limits on the postfix process in
/etc/security/limits.conf in suse

and that may be since you say you are experiencing it when there is heavy load