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pe1750
2015 Sep 13
2
concerning dovecot settings for high volume server
thanks very much urban. this was very helpful.
i have around 12500 users spread over 3 independent servers each having around 4000+ users
i am using qmailtoaster, vpopmail, spamassassin and dovecot.
in future i am planning to consolidate all using a HA cluster.
if it is ok with you could you kindly share some information about your email server configuration. if you do not wish to put it on the
2015 Sep 14
0
concerning dovecot settings for high volume server
...as virtualization technology
- we have 2 dedicated IMAP/POP3 Proxies in front of 8 dovecot containers.
- totally about 2900 concurrent imap sessions on each imap proxy and about 180 concurrent pop3 sessions
- all dovecot containers are running on the same hardware (no problems until today):
DELL PER720 with 2x 200GB RAID 1 SSD's for dovecot indexes, 8x 4TB RAID 10 for maildata, 2x300GB RAID1 for OS
64GB RAM, 2x CPU E5-2640 0 @ 2.50GHz
- HA is Active/Passive with DRBD on 10GBIT dedicated NIC's for all 3 partitions.
- in summary there are about 47k accounts on it.
- 15minutes system load...