• RSS
  • Twitter
  • FaceBook

Exchange Server Forums

Forums | Register | Login | My Profile | Inbox | RSS RSS icon | My Subscription | My Forums | Address Book | Member List | Search | FAQ | Ticket List | Log Out

Apple Mail torturing Exchange Server Disks

Users viewing this topic: none

Logged in as: Guest
  Printable Version
All Forums >> [Microsoft Exchange 2010] >> General >> Apple Mail torturing Exchange Server Disks Page: [1]
Login
Message << Older Topic   Newer Topic >>
Apple Mail torturing Exchange Server Disks - 27.Sep.2010 5:35:41 AM   
posbis

 

Posts: 4
Joined: 27.Sep.2010
Status: offline
Hi all

We have the following situation/problem:

- Exchange 2010 SP1 with around 25 Mailboxes (so nothing)
- Some clients access Exchange using Outlook 2010
- Some clients access Exchange using Thunderbird (imap4)


So far so good. Everything seems to work but now the real problem comes:

- Some clients access Exchange using Apple Mail (IMAP4 not EWS)

As soon as an Apple Mail client is started the disks of our Exchange Server
start blinking permanently and we can see (Windows Resource Monitor)
that store.exe is causing a "high" disk load (~12 MByte/sec).

If Apple Mails are closed the problem disappears immediately.
It is clearly focused on Apple Mail.

Some would say. Stop using IMAP4 use EWS but EWS seems to cause a high load
on the client side and therefore hindering people from working efficently.

Some would say, stop using Apple Mail at all. As well not really way to go.

Another reason why those people use IMAP4 connectivity is because they have to
monitor up to four mailboxes and they must be able to answer in that specific context,
means under this specific email/name. If you do this using Outlook 2010
you always get a "Send on behalf of ....". This is not acceptable.
We have "support" mailboxes which must be unpersonal.

We even tried using IMAP4 for Exchange, a special setting in Apple Mail where
one would think that Apple would talk IMAP4 more nicely with Exchange.
Seems not to help.

So my question is:

- Does anybody of you know what is causing this high disk activity on store.exe ?
(Indexing, Invalid command which Exchange IMAP4 does not understand and there
are permanent retries, ... ?)

- Does anybody of you know how to solve the problem ? Maybe some settings in
configuration files which cannot be reached through GUI settings ?


Any help is appreciated...

Regards,
Oliver
Post #: 1
RE: Apple Mail torturing Exchange Server Disks - 27.Sep.2010 7:17:17 AM   
rishishah

 

Posts: 784
Joined: 14.Nov.2006
From: Surrey, UK
Status: offline
Are you using Encrypted IMAP?

Have you tried setting up IMPA in outlook and seeing if you can replicate the problem.

This is to identify if the issue it with IMAP or the Apple Client you use.

Rishi

_____________________________

Rishi Shah, MCP

Remember to backup before applying the advice. www.saiconsult.co.uk. Happy to provide Professional Exchange Server Consultancy to anywhere in the world.

(in reply to posbis)
Post #: 2
RE: Apple Mail torturing Exchange Server Disks - 27.Sep.2010 9:36:55 AM   
posbis

 

Posts: 4
Joined: 27.Sep.2010
Status: offline
quote:

Are you using Encrypted IMAP?


Yes, we use IMAPS / Port 993

quote:

Have you tried setting up IMPA in outlook and seeing if you can replicate the problem.

This is to identify if the issue it with IMAP or the Apple Client you use.


No, as far as I know all Outlook people use Exchange Transport without any problems. But we
have people using Mozilla Thunderbird over IMAPS and that works fine. No disk trashing so far.

We really can track the problem so far to say, as soon as an Apple Mail Client is started it takes around 15 seconds and disk trashing starts. When the Apple Mail Client (if only one is running) exits the trashing stops after around 30 seconds.

Stopping the MS Exchange IMAP4 service stops the disk trashing as well but maybe this is a very radical solution

Yep, very strange. That is why I have the feeling that Apple Mail does something wrong. Otherwise I would suspect Thunderbird causing the same issues.

Regards,
Oliver

< Message edited by posbis -- 27.Sep.2010 9:40:00 AM >

(in reply to rishishah)
Post #: 3
RE: Apple Mail torturing Exchange Server Disks - 27.Sep.2010 2:05:44 PM   
John Weber

 

Posts: 1236
Joined: 20.Apr.2005
From: Portland, Oregon
Status: offline
Usually, this behavior is seen with Iphones.
The IMAP traffic drives the CAS server crazy - again, usually the iphone.

USUALLY, this is due to bad calendar items. Can you narrow this behavior down to a specific Apple user or is it ALL Apple users?
Do they share something on their calendar like the weekly "bash microsoft junta dinner?"

_____________________________

John Weber [Lync MVP] http://tsoorad.blogspot.com

(in reply to posbis)
Post #: 4
RE: Apple Mail torturing Exchange Server Disks - 28.Sep.2010 4:23:43 AM   
rishishah

 

Posts: 784
Joined: 14.Nov.2006
From: Surrey, UK
Status: offline
if its just one or two clients would you mind asking them to delete the entire mail profile from thier machine andre-create it. There might also be some sort of corruption which is forcing a lot of traffic between the client and server.

_____________________________

Rishi Shah, MCP

Remember to backup before applying the advice. www.saiconsult.co.uk. Happy to provide Professional Exchange Server Consultancy to anywhere in the world.

(in reply to John Weber)
Post #: 5
RE: Apple Mail torturing Exchange Server Disks - 5.Oct.2010 12:22:47 AM   
sekar555

 

Posts: 1
Joined: 5.Oct.2010
Status: offline
I called Morton Sklar, executive director of the World Organization for Human Rights USA, the group representing the dissidents, and asked for his reaction. “It is not the Chinese government that is the defendant here,” Mr. Sklar said. “It is Yahoo, for their part in this process. If not for Yahoo, there would have been no abuses. They gave the pieces of information that allowed China to take these actions.”
Legal experts believe that the plaintiffs face significant hurdles in the case, which was brought under the Alien Tort Claims Act and the Torture Victims Protection Act.


#########################
Industrial Kitchen Equipment | Restaurant Equipment

(in reply to posbis)
Post #: 6

Page:   [1] << Older Topic    Newer Topic >>
All Forums >> [Microsoft Exchange 2010] >> General >> Apple Mail torturing Exchange Server Disks Page: [1]
Jump to:

New Messages No New Messages
Hot Topic w/ New Messages Hot Topic w/o New Messages
Locked w/ New Messages Locked w/o New Messages
 Post New Thread
 Reply to Message
 Post New Poll
 Submit Vote
 Delete My Own Post
 Delete My Own Thread
 Rate Posts


Follow TechGenix on Twitter