That was the first thing I tried, I lowered the cache connections in
Thunderbird. Actually the max connections was 50, not 500, but I could
see why as I do have a lot of folders, but what is odd is I have other
mailboxes that have even more folders, but it's only one mailbox that is
trowing the error.
"# ps -axww | grep imap" does not give me the same results -
.....
19897 ???????? S????? 0:00 dovecot/imap
19900 ???????? S????? 0:02 dovecot/imap
19901 ???????? S????? 0:00 dovecot/imap
19902 ???????? S????? 0:00 dovecot/imap
.....
I wish it did give me the mailbox, is there a option to get it to give
me that information?
Thanks! - Jeremy
On 6/9/2022 6:37, Paul Kudla (SCOM.CA Internet Services Inc.)
wrote:>
> ok the idle connection per folder is a factor
>
> however in thunderbird i believe it defaults to 2 simultanious
> connections
>
> mine is set to 5
>
> in thunderbird see
>
> The solution is to reduce the maximum number of connections in
> Thunderbird. This can be done from Edit > Account Settings > Server
> Settings (under the mail account for which the setting should be
> modified) > Advanced > Maximum Number of server connections to cache.
>
> I dont know of anything that would get it to 500?
>
> as for outlook idle was not / is not supported past 2010 (if even
> that) you need to go into
>
> file --> options --> advanced --> send/receive
>
> all you can change in there is the timing which defaults to 30
> minutes, i recommend 3 or 5
>
> I am unaware of how outlook handles physical connections (maybe
> registery?) and google revieled nothing, outlook since 2010 just does
> not support imap, microsofts way of forcing everyone onto exchange /
> outlook 365
>
> 377,000 hits last time i googled imap issues in outlook.
>
> Best suggestion is to run
>
> # ps -axww | grep imap
> 25500? -? S????????? 0:00.57 imap: [paul at hiscomputer.ca 172.97.150.95
> IDLE] (imap)
> 25530? -? S????????? 0:00.36 imap: [paul at hiscomputer.ca 172.97.150.95
> IDLE] (imap)
> 26014? -? I????????? 0:00.39 imap: [rcooke at tnky.ca 172.97.128.227
> IDLE] (imap)
> 26018? -? I????????? 0:00.38 imap: [rcooke at tnky.ca 172.97.128.227
> IDLE] (imap)
> 26210? -? I????????? 0:00.07 imap: [spanos at scom.ca 99.238.154.160
> IDLE] (imap)
> 38911? -? S????????? 0:00.17 imap: [marilynlally at scom.ca
> 142.188.149.199 IDLE] (imap)
> 38912? -? S????????? 0:00.13 imap: [marilynlally at scom.ca
> 142.188.149.199 IDLE] (imap)
> 41306? -? S????????? 0:00.73 imap: [ed.hanna at dssmgmt.com 204.237.48.37
> IDLE] (imap)
> 41312? -? S????????? 0:00.63 imap: [ed.hanna at ekst.ca 204.237.48.37
> IDLE] (imap)
> 45232? -? I????????? 0:00.23 imap: [rcooke at tnky.ca 172.97.128.227
> IDLE] (imap)
> 55504? -? I????????? 0:00.16 imap: [rcooke at tnky.ca 172.97.128.227
> IDLE] (imap)
>
> which shows all imap connections and from where
>
> if you are overflowing 500+ connections then it has to show up here.
>
>
> Happy Thursday !!!
> Thanks - paul
>
> Paul Kudla
>
>
> Scom.ca Internet Services <http://www.scom.ca>
> 004-1009 Byron Street South
> Whitby, Ontario - Canada
> L1N 4S3
>
> Toronto 416.642.7266
> Main?1.866.411.7266
> Fax?1.888.892.7266
> Email?paul at scom.ca
>
> On 6/8/2022 6:41 PM, Jeremy Schaeffer wrote:
>> Ahhh, Ok, I did not know that and now that makes sense. I did not
>> realize it held a open connection for each folder. I increased that
>> and I will see what happens. I wonder if that will also effect the
>> outlook issues. Thanks! - Jeremy
>>
>> On 6/8/2022 14:28, Frank-Ulrich Sommer wrote:
>>> I think if IMAP IDLE is used you need one connection per folder. If
>>> I remember correctly at least either Thunderbird or K9 Mail
(I'm
>>> using both too) use one connection per selected directory. Simply
>>> increasing the number of connections was the easiest solution as I
>>> only have very few users too.
>>>
>>> Regards
>>> Frank
>>>
>>> Am 8. Juni 2022 21:14:23 MESZ schrieb Jeremy Schaeffer
>>> <kb9mfd at phonesplus.biz>:
>>>
>>> ??? I keep having this issue with one user, and I have to restart
>>> dovecot
>>> ??? several times a day to clear it. What I have is a postfix /
>>> dovecot mail
>>> ??? server (Centos 7) and about a dozen users. All mailboxes are
>>> imap ssl. I
>>> ??? monitor about 4 mailboxes on my computer and tablet. I use
>>> Thunderbird
>>> ??? on the computer (cache connections at 2) and K9 on the tablet,
>>> but one
>>> ??? user of the four I keep getting "Maximum number of
connections from
>>> ??? user+IP exceeded" and I have the maximum at 50
>>> ??? "(mail_max_userip_connections=50)" so its hard for me
to believe
>>> I am
>>> ??? actually exceeding it unless dovecot/client is not dropping
>>> connections
>>> ??? and keeps starting new ones until it reaches the maximum, but
>>> again,
>>> ??? only for one user, even though I am monitoring 4 on the same
>>> devices.
>>> ??? Any idea how to troubleshoot this? I don't know if I should
be
>>> looking
>>> ??? at dovecot or the clients, or what I need to look for. It's
been
>>> going
>>> ??? on since I put this server in use over a year ago. I also have
>>> issues
>>> ??? with Outlook clients disconnecting, just outlook, is there any
>>> ??? recommended settings to make Outlook work smoother?
>>>
>>> ??? Thanks! - Jeremy
>>>
>>> ??? Config -
>>>
>>> ??? # 2.2.36 (1f10bfa63): /etc/dovecot/dovecot.conf
>>> ??? # OS: Linux 3.10.0-1160.11.1.el7.x86_64 x86_64 CentOS Linux
release
>>> ??? 7.9.2009 (Core)
>>> ??? # Hostname: ***
>>> ??? auth_mechanisms = plain login
>>> ??? debug_log_path = /var/log/dovecot_debug.log
>>> ??? first_valid_gid = 500
>>> ??? last_valid_gid = 600
>>> ??? last_valid_uid = 600
>>> ??? listen = *
>>> ??? mail_location = maildir:~/Maildir
>>> ??? mbox_write_locks = fcntl
>>> ??? namespace inbox {
>>> ????? ? inbox = yes
>>> ????? ? location >>> ????? ? mailbox Drafts {
>>> ????? ??? special_use = \Drafts
>>> ????? ? }
>>> ????? ? mailbox Junk {
>>> ????? ??? special_use = \Junk
>>> ????? ? }
>>> ????? ? mailbox Sent {
>>> ????? ??? special_use = \Sent
>>> ????? ? }
>>> ????? ? mailbox "Sent Messages" {
>>> ????? ??? special_use = \Sent
>>> ????? ? }
>>> ????? ? mailbox Trash {
>>> ????? ??? special_use = \Trash
>>> ????? ? }
>>> ????? ? prefix = INBOX.
>>> ????? ? separator = .
>>> ??? }
>>> ??? passdb {
>>> ????? ? driver = pam
>>> ??? }
>>> ??? pop3_uidl_format = %f
>>> ??? protocols = imap lmtp
>>> ??? service auth {
>>> ????? ? unix_listener /var/spool/postfix/private/auth {
>>> ????? ??? group = postfix
>>> ????? ??? mode = 0660
>>> ????? ??? user = postfix
>>> ????? ? }
>>> ??? }
>>> ??? service imap-login {
>>> ????? ? inet_listener imap {
>>> ????? ??? port = 143
>>> ????? ? }
>>> ????? ? inet_listener imaps {
>>> ????? ??? port = 993
>>> ????? ??? ssl = yes
>>> ????? ? }
>>> ????? ? process_min_avail = 1
>>> ????? ? service_count = 0
>>> ??? }
>>> ??? service imap {
>>> ????? ? process_limit = 1024
>>> ??? }
>>> ??? service lmtp {
>>> ????? ? unix_listener lmtp {
>>> ????? ??? mode = 0666
>>> ????? ? }
>>> ??? }
>>> ??? ssl = required
>>> ??? ssl_cert = <***
>>> ??? ssl_cipher_list =
>>> ECDHE-RSA-CHACHA20-POLY1305:ALL:!LOW:!SSLv2:!EXP:!aNULL
>>> ??? ssl_key =? # hidden, use -P to show it
>>> ??? ssl_prefer_server_ciphers = yes
>>> ??? userdb {
>>> ????? ? driver = passwd
>>> ??? }
>>> ??? protocol imap {
>>> ????? ? mail_max_userip_connections = 50
>>> ??? }
>>>
>>> -- Diese Nachricht wurde von meinem Android-Mobiltelefon mit K-9
>>> Mail gesendet.
>>
>> --
>> This message has been scanned for viruses and
>> dangerous content by *MailScanner*
<http://www.mailscanner.info/>,
>> and is
>> believed to be clean.
>