====== E-Mail Dovecot ======

===== de-duplicate messages =====

Count duplicated messages for mailbox:

<code>
doveadm -f table fetch -u user@mailbox.org \
  hdr.message-id mailbox INBOX | sort |uniq -c | sort -k2nr | \
  awk '{printf("%s\t%s\n",$2,$1)}END{print}'
</code>

De-duplicate based on the message-id (arg -m):
  doveadm deduplicate -u user@mailbox.org -m mailbox INBOX

Docs:
  * https://doc.dovecot.org/main/core/man/doveadm-search.1.html 
  * https://doc.dovecot.org/main/core/man/doveadm-deduplicate.1.html