Qmail

OS: Linux
Mail Program: Qmail,vpopmail,squirrel mail

Can we  monitoring bounces in qmail.How to see some log files regarding bounces from particular stream.Do we monitor these at all, to have an indication of what the bounce percentage of total mails sent is? If we don't, can we perhaps set up either a mailbox to collect all the bounces per stream, or set up some form of analytical program to measure the bounceback rate?

 /var/qmail/bin/qmail-showctl

qmail home directory: /var/qmail.
user-ext delimiter: -.
paternalism (in decimal): 2.
silent concurrency limit: 120.
subdirectory split: 23.
user ids: 502, 503, 504, 0, 505, 506, 507, 508.
group ids: 502, 503.

badmailfrom: (Default.) Any MAIL FROM is allowed.

bouncefrom: (Default.) Bounce user name is MAILER-DAEMON.

bouncehost: (Default.) Bounce host name is y.xx.com

concurrencylocal: (Default.) Local concurrency is 10.

concurrencyremote: (Default.) Remote concurrency is 20.

databytes: (Default.) SMTP DATA limit is 0 bytes.

defaultdomain: Default domain name is xx.com.

defaulthost: (Default.) Default host name is y.xx.com.

doublebouncehost: (Default.) 2B recipient host: y.xx.com.

doublebounceto: (Default.) 2B recipient user: postmaster.

envnoathost: (Default.) Presumed domain name is y.xx.com.

helohost: (Default.) SMTP client HELO host name is y.xx.com.

idhost: (Default.) Message-ID host name is y.xx.com.
localiphost: (Default.) Local IP address becomes y.xx.com.

locals:
Messages for y.xx.com. are delivered locally.

me: My name is y.xx.com.

percenthack: (Default.) The percent hack is not allowed.


percenthack: (Default.) The percent hack is not allowed.

plusdomain: Plus domain name is xx.com.

qmqpservers: (Default.) No QMQP servers.

queuelifetime: (Default.) Message lifetime in the queue is 604800 seconds.


morercpthosts: (Default.) No effect.

morercpthosts.cdb: (Default.) No effect.

smtpgreeting: (Default.) SMTP greeting: 220 y.xx.com.

smtproutes:
SMTP route: ss.com:192.168.215.7:25

timeoutconnect: (Default.) SMTP client connection timeout is 60 seconds.

timeoutremote: (Default.) SMTP client data timeout is 1200 seconds.

timeoutsmtpd: (Default.) SMTP server data timeout is 1200 seconds.

virtualdomains.lock: I have no idea what this file does.

supervise: I have no idea what this file does.

concurrencyincoming: I have no idea what this file does.

defaultdelivery: I have no idea what this file does.

smtproutes-orig-29Jun2007: I have no idea what this file does.

locals.lock: I have no idea what this file does.

rcpthosts.lock: I have no idea what this file does.