Mail Activity shows incoming emails but none showing up!?

Just to make things even more interesting- 10.5.2 created this problem for me (everything worked well in 10.5.1). Here's the odd thing- any e-mail client I use (Mail, Thunderbird) has the same problem getting e-mail from my office Exchange server. I just got the new Office suite from Microsoft and installed Entourage. It gets e-mails without a problem, while Mail still drags when it works at all. Does this make any sense to anyone?

Thanks

When I created my new user, and only set up my problem account, in my new user account everything worked, I was able to get new mail, look at my mail and send mail no problem. So I then just transferred everything over to my user account and it all worked perfectly. It worked for me, I just didn't know if it's worked for anyone else?

This same problem happened to me after I brought my iMac to the Apple store this past Saturday because of permissions problems that could not be resolved. They re-installed 10.5.1 and after I set up my mail account again, I am having the spinning wheels mentioned here. I upgraded it to 10.5.2 and still have the problem, except now it lets only one email through and then hangs. Outgoing mail goes well and my .Mac mail can come and go. I had to download Thunderbird. I gave up on Mail. I didn't see any other plist to do what Dan suggests.

I have had this problem, too.
I don't have a solution, but I have found that when it goes into its download "loop" I can open the detailed "activity" window - Apple +0 (that's zero, not the letter O). This shows all the processes going on and you can stop the offending process. It then seems to return to normal, at least for a while.

Hi all,
Just closing the loop here on my problem. I resolved this with the help of both Apple tech support and Rogers support. Rogers doesn't support over-the-phone Mac Mail programs (grrr) but they were helpful.
It appears one of my emails was corrupt. A PC that I configured with my email address actually brought all my emails in (>190) but the one that was corrupted. Mac mail wouldn't bring ANY email off my server because of the one corrupt email. Frustrating but in the end problem solved. I deleted the email from the web browser and now my mac mail is working like a charm (yeah!)
Mark

This just in...I have one account which I can configure as POP3 OR iMap. When I use POP3 it hangs forever - spinner and Force Quit! I just configured it as iMap and it worked as it used to!

One observation - account verification in setup took no time at all with iMap - took forever with POP3.

Unfortuneately this is only a small part of my problem - my primary account is POP3 and still won't work. I missed a day or two of webmail cleanup and now have over 700 messages to deal with - I miss the Junk filter!

I have two machines using Leopard which have the same issue...the one using Tiger is fine.

Saw a second Genius at a second Apple store for this issue yesterday. He ultimately came up with this: it's perhaps a problem with Mail as it tries to access my mindspring.com mail account. And he suggested what the first Genius did: use Thunderbird or Entourage instead.

Ditto. This is driving completely crazy. Apple doesn't a have fix for this problem?

Grrr.

Mike

When I created a test Mac account Mail worked fine, but not in my regular account. I brought my computer back to a Genius today and his suggestion was to either reinstall the OS or just create a new user name. He said the problem seemed to be with my user account. So I did that and dragged all my files to the drop box so I could move them over and now I am finally up and running in Mail.

I've been looking for a solution for months...tried the plist thing over and over. Your solution of creating a new user seems to be doing the trick. If it also fixes all of my keychain issues, I'll be happy.

Not an elegant "solution" but...it beats what I've been putting up with.

Thanks for sharing.

The first Genius I saw tried this (and I just tried it again to be sure). No dice. Problem persists in new account as well.