Exchange Mail Issues after Lion Upgrade

yiiit, my university's exchange server is not hosted by a third party - it is ours on our network. We did have some trouble with certain websites and exchange server as discussed here and with other posts. It is exchange server 2010. The IT department here has been going back and forth on this as well and did say they are working with our Apple reps and have gotten it bumped higher.

Now, as I already admitted, I am not a computer/IT person so forgive me (and please don't flame me) if you have already seen and discussed this, but this is a snippet from one VT/IT (Virginia Tech) discussion:

EVERY application that uses VTCA/Global certificates is failing IF they

>>are using Lion's SSL libs. The "workaround" for Exchange connection is

>>one thing. EVERY VTCA/G cert we issue will require a workaround.

>

>Could someone with Lion installed check something?

>

>Hunt around in Keychain Access's preferences and see if there are still

>options to do CRL and OCSP checking. If so, are those options turned on

>or off? If they're on, try turning them off and see if Safari, iCal,

>etc. still crap themselves when presented with a VT Global Server CA

>issued/signed certificate.

The latest updates (Firmware and Thunderbolt) from Apple today seem to have fixed my MAC MAIL issues with Exchange. Can someone else confirm this isn't just me and a fluke! YOu have to check for software update after the firmware update as well).

Fluke - but a good one. I am contacting the external company that run our exhange server to see if they will help...this kind of problem was fun back in college when we had nothing better to do but its really affecting my ability to work from home ...

I'm posting this in 3 discussions about Exchange folders vanishing in case people aren't reading all 3 of them.

As of today, I have been testing a new user in Mac OS X for a week and it hasn't had any problems. This is the longest I've goen without my Exchange account "melting" away. I will go for one more week to see if it stays working properly.

So if you have not tried this yet, you may want to try. And if you already did this and it's failing still, let us know.

I created a new user called "Mail" and set up my Exchange account under this user. I then have been using fast user switching to use the "Mail" account for mail and other tasks under my regular account.

If this in fact works, it means I will have to set up programs under this new user and migrate data, etc. My account has gone (possibly, since I can't remember) from Tiger on an old Mac Book Pro to Snow Leopard and then migrated to my current MBP 17 I got in early 2010 and then upgraded to Lion.

Like all or most of you, everything worked great under Snow Leopard and it was only when Lion was installed as an upgrade di the problems start.

Using a new account may help anyway as I get quite a few beachballs and I might have some programs installed that I don't need any more, so it may be a good time to clean things up.

Frank

And @Franc_Iphone: The latest update didn't help me. Just a few days ago my folders disappeared.

@gillyfish: If you hear anythinglet us know. I contacted my Hosted Exchange and #1 they don't support Mail, only Outlook for Mac and #2 MY Hosted Exchnage company hasn't had and big problems with its users and they are a pretty big host and #3 they haven't been in touch with Apple since this hasn't bee a big enough problem and they don't know of any changes they can make that would make a difference. Maybe you can get more info from your hosting company.

I also initialized multiple times, and the problem is not solved. initializing is equivalent to creating a new user? so I think the problem is not solved so.

Caicox, not sure where you got the term "initialize". If you were replying to me, what I did was to go to System Preferences and then Users and added a new user. Then you have to log out or do fast user switching to this new user and set up mail fresh with your Exchange account.

Can you confirm that's what you did?

I meant formatted.

does not solve the problem either a new installation

Thanks caciox. Sorry it didn't work for you.

So far I am on day 8 with a new user and it's working OK. I'm not in that user 24/7 as I fast switch between accounts, but even then I believe the Mail is working in the background and fetching new mail and changes and it hasn't had a problem.

So it seems that things that might work (that others may have posted earlier) are:

1. Changing some settings on the server

2. Deleting local certificates

3. Using IMAP - more of a workaround

4. Creating a new user - doesn't work for everyone and also somewhat of a workaround but can be a permanent solution IF it works OK and the new user has all data and programs migrated to it

Anyone else have thinsg they have done that work for sure, even if just for you?

I struggled with this for months. What finally fixed it for me was disabling TCP task offloading on the Exchange Client Access Server. I also disabled it on the mailbox server, but it started working properly as soon as I made the change on the CAS and rebooted the server.

Here's the article that explains how to do it (in Windows Server 2003): http://support.microsoft.com/kb/904946

I never had any problems with Windows clients, iOS devices, Android phones, or even Macs running Snow Leopard. Lion, however, did not like it at all. I even experienced problems using Outlook Web Access on the Mac side through a web browser. If I recall correctly, it even affected Windows virtual machines running in Parallels on the Mac.

For what it's worth, I'm running Exchange Server 2007 on Windows Server 2003 R2. I made the change on Monday and haven't had any issues since.

I hope this helps.

--Steve

This is no solution, but maybe, this helps somehow:

Yesterday I tried to setup Mail for the first time, because I wanted to compare Mail vs. Outlook to find out which is the best client for my usecase. So for the first time I used Mail, Lion had been allready installed. After a few hours (probably after the the first complete sync), all folders and Mails disappeared - like discribed in the posts abouve.

I've got Outlook 2011 running on the same system, and everything works just fine with outlook as client.

I've got a hosted Exchange, so I don't have any possibilities to configure the server.

If you read the discussions rules you agreed to, we can not start petitions, etc. We may not all agree with that, but those are the rules. Apple wants people to ask questions and post replies that help or might help.

Just adding my "yeah, this is happening to me too and I hate it".

Although it's not as frustrating as the weird "sometimes I have to copy and/or paste twice to get it to work" bug and the "my selection stays active after I delete the text in it so if I start typing I then type over more selected text" bug.

I assume most of all of you are reading the other discussion about this issue, but decided to cross-post here too just incase:

So......

Per hints from others...

I had been fine for weeks, perhaps over a month. I DID have two email accounts on the same server and thought I had both set up, BUT I did not. So, yesterday I added back in the second email account and what should happen? I started losing folders!

So, this may not be the ONLY condition that brings on the problem, but it appears that if you have two email accounts on the SAME server, it causes the problem. Two accounts on different servers may not cause the problem as I have had two accounts on two different servers for the past month with no problems.

So does anyone have the problem with disappearing folders and they have only one email account they are checking on one (or more) Exchange servers?

And if you have more than one email account on ONE server, do you have the problem of disappearing folders or no?

Frank

I only have one account on this Exchange server.

I've got 2 Exchange Servers Accounts running in Mail. This two Accounts are hosted accounts by the same provider but for two diffrent companies (two diffrent environments).