Okay, you want more info.  Server is a Mac mini running 10.9 Mavericks.  This user is an iPhone on wifi (all our iPhones seem to have the problem more often than desktop Macs, but every device encounters the problem to some degree).  I figure we have no more than 30 devices checking email, 100 IMAP channels, 30 reserved for clients, 30 for non-clients, 30 from same address.  Here's another typical time-out log snippet (same user):

   

 01:33:11.818 2 IMAP-007732([108.72.228.172]) 'user@realpeople.com' connected(CRAM-MD5) [108.72.228.172]:60583->[24.73.176.117]:993(tls)(temp client)

 01:33:18.863 2 IMAP-007732([108.72.228.172]) 'user@realpeople.com' disconnected ([108.72.228.172]:60583)

 01:42:57.501 3 IMAP-007686([71.12.181.40]) read failed. Error Code=read time-out

 01:50:50.121 3 IMAP-007709([108.72.228.172]) read failed. Error Code=read time-out

 01:50:50.121 3 IMAP-007708([108.72.228.172]) read failed. Error Code=read time-out

 01:50:50.121 2 IMAP-007709([108.72.228.172]) 'user@realpeople.com' disconnected ([108.72.228.172]:55866)

 01:50:50.121 2 IMAP-007708([108.72.228.172]) 'user@realpeople.com' disconnected ([108.72.228.172]:55862)

 01:50:50.890 3 IMAP-007707([108.72.228.172]) read failed. Error Code=read time-out

 01:50:50.890 2 IMAP-007707([108.72.228.172]) 'user@realpeople.com' disconnected ([108.72.228.172]:55856)

 01:50:50.960 3 IMAP-007710([108.72.228.172]) read failed. Error Code=read time-out

 01:50:50.960 2 IMAP-007710([108.72.228.172]) 'user@realpeople.com' disconnected ([108.72.228.172]:55867)

 What's causing these time-outs and TLS closures???  Cheers,

 --

 Gib Henry

   

 On 7/25/14 6:00 AM, CommuniGate Pro Discussions wrote: 

                                 

 Subject:          TLS connection is being closed by peer 

                               From:  Gib Henry <gib@realpeople.com> 

                               

 Date:  Thu, 24 Jul 2014 14:22:06 -0500                  

   

   In investigating numerous complaints of IMAP connection failures, we see a lot of events like this:

   

      

 14:11:31.615 2 IMAP-007513([108.72.228.172]) 'user@realpeople.com' connected(CRAM-MD5) [108.72.228.172]:55326->[24.73.176.117]:993(tls)(temp client)

 14:11:33.477 3 IMAP-007510([108.72.228.172]) read failed. Error Code=TLS connection is being closed by peer

 14:11:33.477 2 IMAP-007510([108.72.228.172]) 'user@realpeople.com' disconnected ([108.72.228.172]:55310)   

 Eventually, after seconds to hours, the problem user does connect with no configuration changes at either end, so the problem is transient or intermittent.  Can anyone suggest what it might be, or how to make connections more consistent?  Thanks in advance for any insight.  Cheers,

 --

 Gib Henry

       

 #############################################################

 This message is sent to you because you are subscribed to

  the mailing list <CGatePro@mail.stalker.com>.

 To unsubscribe, E-mail to: <CGatePro-off@mail.stalker.com>

 To switch to the DIGEST mode, E-mail to <CGatePro-digest@mail.stalker.com>

 To switch to the INDEX mode, E-mail to <CGatePro-index@mail.stalker.com>

 Send administrative queries to  <CGatePro-request@mail.stalker.com> 

  thug nature  <<<