added a mmap based ipc feature to prevent duplicates

dup detection fix

dedup debug message

imap fixes

sql errno fix

do not treat as a fatal error if a recipient cannot be added

added a missing close()

better duplicate detection

code cleanup

display the stored id when a duplicate is found

added domain field to rules

minor code cleanup in message.c

prepared statement fixes

added customer initial support

initial commit using a very minimalistic db abstraction preparing to add postgresql support as well

fixed follow-up handling

added a fix to find the first message of a thread

code cleanup and added server_id to the store path

code cleanup

switching to prepared statements in attachment.c

using prepared statements in message processing

removed the unused bodydigest function

piler daemon forgot to remove the stripped attachments if the message was discarded by an archiving rule. Fixed

fixed the metadata fromdomain value

combine journal recpient addresses, allowing bcc users to see their messages

fixed a parser bug

added folder support for piler daemon and pilerimport

remove temp attachment files if it's a duplicate message

remove message files if it's a duplicate according to message-id

added retention rules to piler core