index ulang mailbox
uapi --user=usercp Email fts_rescan_mailbox account=username@example.com
index ulang mailbox
uapi --user=usercp Email fts_rescan_mailbox account=username@example.com
https://support.cpanel.net/hc/en-us/articles/360051894014-Clear-Exim-Retry-DB-to-bypass-retry-time-not-reached-after-fixing-an-issue-with-delivery
/usr/local/cpanel/scripts/exim_tidydb
mv -vi /var/spool/exim/db/retry{,.$(date +%s)}
mv -vi /var/spool/exim/db/retry.lockfile{,.$(date +%s)}
/scripts/restartsrv_exim
https://i.riken.jp/download/sites/2/Mailman_manual_en.pdf
https://support.mozilla.org/bm/questions/1035377
nano /etc/sysctl.conf
#################NOTE ################ ##You are limited by CPU and memory too
# ###########################################
dev.raid.speed_limit_min = 50000
## good for 4-5 disks based array ##
dev.raid.speed_limit_max = 2000000
## good for large 6-12 disks based array ###
dev.raid.speed_limit_max = 5000000
https://www.cyberciti.biz/tips/linux-raid-increase-resync-rebuild-speed.html
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