I hope I just discovered my problem, and I hope it will help other people
too.
As I said, I'm using CodaFS: sometimes Coda (a network fs) may respond slow
to open files because files is modified on another host, or because getting
info from master servers is delayed, and so on.
Looking at my run script, I found a little thing intersting:
exec /usr/local/bin/tcpserver -v -c 50 -H -P -R -l pop3.frontend.int -x
/coda/qmail/vpopmail/relay/tcp.smtp.cdb \
-u $QMAILUID -g $QMAILGID ip port /coda/qmail/bin/qmail-smtpd 2>&1
^^^^^^^^^^^^^^^^^^^^^^^^^^^
But /coda/qmail/bin is a link on a ext3 fs: when I installed qmail, I
installed it without binaries on codafs, just conf and mailboxes files. So:
why using /coda/qmail/bin when I can use /usr/local/qmail/bin ?
Now, my smtpd run script is
exec /usr/local/bin/tcpserver -v -c 50 -H -P -R -l pop3.frontend.int -x
/coda/qmail/vpopmail/relay/tcp.smtp.cdb \
-u $QMAILUID -g $QMAILGID ip port /usr/local/qmail/bin/qmail-smtpd 2>&1
and all is working great (I mean, no false alarms for today, meanwhile I
received them two or three per day at least just yesterday). tcp.smtp.cdb
must remain on Coda.
Pop3 modified in the same way. It was:
exec /usr/bin/env - PATH="/coda/qmail/bin:$PATH" \
/usr/local/bin/tcpserver -v -c 50 -H -P -R -l pop3.frontend.int ip port
/coda/qmail/bin/qmail-popup \
pop3.frontend.int /coda/qmail/vpopmail/bin/vchkpw
/coda/qmail/bin/qmail-pop3d Maildir 2>&1
but now it is:
/usr/local/bin/tcpserver -v -c 50 -H -P -R -l pop3.frontend.int ip port
/usr/local/qmail/bin/qmail-popup \
pop3.frontend.int /usr/local/vpopmail/bin/vchkpw
/usr/local/qmail/bin/qmail-pop3d Maildir 2>&
Anyway, thank you people :).
PS: I'm very happy that Henning Brauer found no problems with pop3.monitor:
it's a confirm that it's a good monitor. :)
---
Cordiali saluti / Best regards
Andrea Cerrito
^^^^^^^^^^^^^^
Net.Admin @ Centro MultiMediale di Terni S.p.A.
P.zzale Bosco 3A
05100 Terni IT
Tel. +39 744 5441330
Fax. +39 744 5441372