Hi Angus,

Thank you for your explaining.
This server access from customers.
My company account access from smartphone, pc, vdi with different node.
I was just my imagined 256 is ok.
You are right.

Regards,
Nori




> I doubt a single user would ever need 256 simultaneous connections, but 
> -- judging by the name -- the setting might specify the number of 
> connections allowed from a single IP, which would be different.
> 
> If you had a large number of users on a NAT'ted network, so that they 
> looked to the server as if they were coming in from a single IP, maybe 
> bumping the allowed connections up to 256 would make sense?
> 
> Angus
> 
> 
> On 2018-10-24 13:52, Jeff Koch wrote:
> > Hi Nori:
> > 
> >  Thanks, but why would any user need 256 simultaneous pop3
> > connections?
> > 
> >  Jeff
> > 
> > On 10/24/2018 6:40 AM, Noriyuki Hayashi wrote:
> > 
> >> Hi,
> >> 
> >> Just addtional information.
> >> 
> >> /etc/dovecot/dovecot.conf
> >> 
> >> ###--- High-performance mode ---###
> >> ###--- Do not use imap for SquirrelMail ---###
> >> #service imap-login {
> >> # service_count = 0
> >> # #client_limit = $default_client_limit
> >> # #process_min_avail = 0
> >> # #vsz_limit = 64M
> >> #}
> >> ###--- Do not use imap for SquirrelMail ---###
> >> service pop3-login {
> >> service_count = 0
> >> }
> >> ###--- High-performance mode ---###
> >> 
> >> /etc/dovecot/conf.d/20-pop3.conf
> >> #pop3_client_workarounds =
> >> 
> >> protocol pop3 {
> >> # Space separated list of plugins to load (default is global
> >> mail_plugins).
> >> #mail_plugins = $mail_plugins
> >> 
> >> # Maximum number of POP3 connections allowed for a user from each
> >> IP address.
> >> # NOTE: The username is compared case-sensitively.
> >> #mail_max_userip_connections = 10
> >> mail_max_userip_connections = 256
> >> }
> >> 
> >> In my case, I am using 256.
> >> 
> >> Kind regards,
> >> Nori
> >> 
> >> On Mon, 22 Oct 2018 20:03:08 -0400
> >> Jeff Koch <jeffk...@intersessions.com> wrote:
> >> 
> >>> Hi Eric:
> >>> 
> >>> We just installed another CDB version of the QMT. It's working
> >>> great - thanks. I have a question.
> >>> 
> >>> We have a situation where a user wants to have multiple devices
> >>> concurrently connecting via pop3 to his email account so that each
> >>> device is downloading messages. He is finding that the second
> >>> device is getting a message that only one user can connect to his
> >>> pop3 account at a time. Seems to me this used to work on the older
> >>> QMT's. Is this behavior normal?
> >>> 
> >>> Regards, Jeff Koch
> >> 
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