similar to: Logouts/disconnections not being logged?

Apologies for bumping Joseph Tam's rather old thread, but I'm wondering if anyone has come up with a workaround/fix for this problem that iOS Mail.app clients (10.3.3, 11.0.3, 11.1?) continue to exhibit? Robert On 10/28/2016 at 03:49 PM, Joseph Tam wrote: > I frequently see this from my iPhone/iPad IMAP users: > > ????Oct 24 21:30:55 server dovecot: imap-login: Login:

Thanks for the reply and suggestion Robert. I have now set mail_max_userip_connections to 400 in 20-imap.conf to see if it makes any difference. Late yesterday the customer tested from his office, an older IOS 9 tablet and he had IMAP working in a matter of minutes, so is certainly an newer software version by Apple issue. On 30/11/17 03:03, Robert Giles wrote: > David, > > I'd

I frequently see this from my iPhone/iPad IMAP users: Oct 24 21:30:55 server dovecot: imap-login: Login: user=<user>, ... [... repeated 10 times ...] Oct 24 21:32:54 server dovecot: imap-login: Maximum number of connections from user+IP exceeded (mail_max_userip_connections=12): user=<user> Oct 24 21:32:54 server dovecot: imap(user): Logged out ... [... repeated 11 times

"David.M.Clark" <david at davrom.com> wrote: > I have modified mail_max_userip_connections to 400 which made no difference. > > The end user customer actually had Apple remote into their device and > they were impressed that the end user knew their IMAP settings. They > tested it and during this connection time, it worked as expected with > send and receive

Sami Ketola writes: >> Can anyone with Solr installed confirm/refute this: does installing >> Solr keep iOS clients from roofing the connection count? > > I doubt it, but since IMAP SEARCH goes all the way down to the backends > mail_max_userip_connections can be used to limit the number of > connections. Understood -- that's the current situation I'm in now.

On 30/11/17 03:03, Robert Giles wrote: >> David, >> >> I'd say that if you set the mail_max_userip_connections value to a >> large-ish number (300-400), your users likely won't notice an issue on >> their iOS 10.x and iOS 11.x devices.? It's more of an annoyance in the >> logs, and occasionally the iOS Mail app will show that it is stuck >>

I have a problem with a user who uses a wireless carrier that keeps changing his IP as he travels throughout the city. From the perspective of our dovecot IMAP server, the user keeps logging in from another IP, and after a short while, hits up against the mail_max_userip_connections limit. It takes 30 minutes before those orphaned connections times out. Is there any way to decrease the IMAP

I ran into two issues trying to upgrade our dovecot installation (Solaris 10). 1) Does not compile with OpenSSL 0.9.7 Not a big deal, as I was able to successfully against OpenSSL 0.9.8, but does dovecot require OpenSSL >= 0.9.8 now? libtool: compile: gcc -DHAVE_CONFIG_H -I. -I../.. -I../../src/lib -I../../src/lib-test -std=gnu99 -O3 -fomit-frame-pointer -mcpu=ultrasparc -Wall -W

Hello, I'm attempting to use imaptest to test auths/sec on my imap server, to simulate the number I'm getting now on a new server. Based on my readings of dovecot stats outputs, my current machine is doing somewhere between 11.6 and 196 logins/sec at its busiest, and I want to make sure the new server can handle that amount. With imaptest I attempt to simulate this by just simulating

S?ren Peter Skou <sps at DanskKabelTV.dk> writes: > I've experienced that IMAP/IMAPS stops responding. To restore service > there is only one way, restart Dovecot completely. This leads to > services being interrupted for some people, so it seems to only affect > some of the users on the server. But POP3/POP3s is still running > happily. Also, it happens more as we

"@lbutlr" <kremels at kreme.com> writes: (Are you the OP, or have I mistakenly atributed this to Rupert Gallagher?) >> So what the composition of all this traffic? Are you saying the mail >> client is ultra dumb and repeatedly downloading entire messages, read >> and unread, attachment and all (i.e. you're truly bandwidth limited?) > > It most

With PKIX validation the certificate should match the hostname. With SMTP, the hostname should match the reverse IP though often it does not. Using subdomains gives you flexibility. with DANE validation, it is DNSSEC that validates the fingerprint to the hostname so I do not believe there is a need for the hostname in the cert to match anything, but DANE validation is currently not used by

! I just installed Centos 4.1 (i386) on one of my test drives. When ever I try to logout of a Gnome session, it seems to hang but if I wait about 4-5 minutes it will usually logout, although I have had it hang a couple of times (never logs out). When I do an ALT-TAB-F1, and log in as 'root', I can see the following processes still hanging around after Gnome finally does logout:

Andr? Peters writes: > > I have a problem with a user who uses a wireless carrier that keeps > > changing his IP as he travels throughout the city. From the perspective > > of our dovecot IMAP server, the user keeps logging in from another IP, > > and after a short while, hits up against the mail_max_userip_connections > > limit. It takes 30 minutes before those

Thanks Joseph, Aki, but something missing from upgrade document, where does the dh param file go? I located ssl-parameters.dat so I will put it there. Quoting Joseph Tam <jtam.home at gmail.com>: > On Fri, 22 Jun 2018, Joseph Tam wrote: > >> However, recent advances make this condition obsolete [*] and not >> really safer, so a much faster way to generate a DH key is

Adi Pircalabu writes: > For us it is, we're periodically getting hammered by iOS devices that > try to open 300+ simultaneous IMAP connections for a single user from > the same IP, while the average hovers usually below 50 for the busier > mailboxes with many folders. Oh yeah, I've seen this. I think this happens when someone does a global pattern search, which causes the

Jaime Ventura writes: > Is there an easy way to get how many connections are being handled at a > moment? This works: doveadm who -1 2>/dev/null | wc -l If yopu only want to coutn IMAP connections (not POP3), doveadm who -1 2>/dev/null | grep -Fc imap Joseph Tam <jtam.home at gmail.com>

And here is mine. All dates are todays! # doveadm -f tab fetch -u test at example.org "uid date.saved" mailbox Trash uid date.saved 6829 2018-07-18 06:04:50 6830 2018-07-18 11:10:13 6831 2018-07-18 16:16:15 6832 2018-07-18 16:16:15 6833 2018-07-18 08:22:55 6834 2018-07-18 16:16:15 6835 2018-07-18 08:47:10 6836 2018-07-18 09:12:11 6837 2018-07-18 09:53:31 6838 2018-07-18 11:03:31 SNIP a

Nice to get to hear this. However, the password is not stored in clear text here. How then does it work? On Fri, Dec 21, 2018, 00:58 Joseph Tam <jtam.home at gmail.com wrote: > On Thu, 20 Dec 2018, Odhiambo Washington wrote: > > > At the expense of sounding stupid, could you please expound on the > > sequence? :) > > In a nutshell, during protocol handshake, the server

<!doctype html> <html> <head> <meta charset="UTF-8"> </head> <body> <div> <br> </div> <blockquote type="cite"> <div> On 07/08/2019 00:37 Joseph Tam via dovecot < <a href="mailto:dovecot@dovecot.org">dovecot@dovecot.org</a>> wrote: </div>