# mailman server
mailman.rc.usf.edu
/var/lib/mailman = holds message archives, and lists
/etc/mailman = contains aliases file, which controls list admin info, etc. ** if changes are made to aliases, run genaliases afterwards
/usr/lib/mailman/bin = contains mailman list binaries (rmlist, list_admins CASE SENSITIVE)\
/var/log/mailman = mailman logs (list posts, etc.)

# Verbose debugging options
* change smtpd to smtpd -v in master.cf
* use debug_peer_level = n (default 2) and debug_peer_list = IP in main.cf

# systemd based systems may not write to /var/log/maillog
* set maillog_file = /path/to/log

# Access non-public mailman list
http://mailman.it.usf.edu/mailman/listinfo/LIST_NAME (obtain from bin/list_lists)

# Postfix stuff

PID file is located in /var/spool/postfix/pid/master.pid

# Main queues
Incoming/Active: Most common queues.  Incoming and outgoing messages live here until they are delivered/received.
Deferred: If messages can't be delivered, they arrive here for the deferred time frame.
Hold: Queue where messages live indefinitely; no attempt is made to deliver, and there is no TTL.
Maildrop: prepares messages first, then messages go to active

# USF queues
active
bounce
corrupt
defer
deferred
flush
hold
incoming
private
public
saved
trace


# Terms
flushing - attempts to deliver all messages in queue, not remove them!
*: The message is in the active queue, i.e. the  message  is  selected for delivery.
!:  The message is in the hold queue.


# Queue management
# Queues: hold incoming active deferred
# use ALL (in caps) to remove ALL messages in specified queue

mailq: lists the mail queue and all its gory details
mailq |awk '{print $1}'|egrep '^[A-Z0-9]'|egrep -v '@': get all message ids in queue
postcat -q MESSAGEID|QUEUEID: view message in queue
postqueue -f :

# Get specific messageID's for sender:
mailq|grep sender_address|awk '{print($1);}'|awk -F! '{print$1}'

# Bulk queue operations on messageID's
mailq|grep sender|awk '{print($1);}'|awk -F! '{print $1}'|postsuper OPTION -   ###### dash signifies all messages matched from stdin

# Rebuild /etc/postfix/virtual 
postmap /etc/postfix/virtual

postsuper -d queueID: deletes messages in specified queue
postsuper -d ALL hold: removes all messages in HOLD queue
postsuper -h ID: moves messages to Hold queue
postsuper -r: requeues messages; requeues messages in Hold to maildrop and then to incoming/active
postuper -H ID: removes message from hold queue * DO NOT INCLUDE !*
qshape -s queueID |head: list queue statistics for SENDER DOMAIN
qshape queueID |head: list queue statistics for recipient domains
postqueue -f: flush queue

postfix reload: updates postfix config
postaliases /etc/aliases: updates the postfix aliases hash
postconf -d: list all main.cf DEFAULT configuration values
postconf -n: list all MODIFIED main.cf configuration values
postconf -e value: edits main.cf and reloads postfix

# Convert to Maildir
1.)  add home_mailbox = Maildir/ within main.cf
2.) create .procmailrc within ~userhome with "DEFAULT=$HOME/Maildir/"