Apple mail not getting new mail

Maybe it's because you don't have any new mail? Check the web interface (if there is one).

What account type is this? (Exchange, Gmail, etc.)

I wonder if your mail host's IMAP server isn't properly handling IMAP IDLE requests.

I assume if you use Mail's Connection Doctor it shows no unexpected behavior when checking for new mail, so if that's the case try the following:

1) Go to Mail's Preferences
2) Select your account in the "Accounts" section and select the IMAP account you're using
3) Click "Advanced"
4) Uncheck the box next to "Use IDLE command if the server supports it"
5) Close the accounts window and click "Save" when prompted
6) Try retrieving newly received mail again

There seems to be a lot of people with more or less the same issue, without a fix. This could be a problem with Mail itself.

However it works properly with every IMAP server I and most other people have accounts on.

Most of the other threads you cite involve people who have configuration issues and cannot receive mail at all, not just issues with receiving mail after initial new messages are retrieved.

I had that problem repeatedly with mail when using a slow internet connection while working at a client of mine. Switching to Thunderbird noticably reduced the frequency of the problem, but did not eliminate it. The only solution that has worked for me for most (and there are many) Mail problems with IMAP is to go back to using Thunderbird.

I'm having similar problem. No new mail coming in. Mails get out very fast (I see that on my iPhone, mail to myself), however on the desktop iMail it last almost 30 minutes before the sending icon stops turning around. On the other accounts no problem. On my MacBook Pro no problem. The settings are on both machines the same. Someone any idea what is happening and how to resolve?

I have the exact same problem on my laptop.

I use mobileme to sync all my computers. All of my Apple Mail accounts work on the other computers. On my laptop however I launch mail. It gets all my new email. Then nothing. I have to force quit eventually (Mail won't quit on it's on. I choose quit and it stays in memory).

I relaunch it gets my mail on the first Get Mail click no problems. After that? nothing. You can leave mail running for days and no new emails will arrive in my box despite the fact every other synced computer sees hundreds of new messages.

Frustrating.

What I did lately was to remove my account in Mail preferences. Don't worry, you will not loose all your mails. After that I made a new account with the same account name. I got things work again!

I have the same problem. I have been sitting here for over 40 minutes waiting for an email and trying to figure out why its not pulling it from the server. I check my account with godaddy and the message is on the server. So why is Apple Mail not receiving it. I tried unchecking the "idle" box and that didnt work. The only way it will receive is to quit and relaunch. Annoying! Help!

oh i also removed all accounts, including preferences and set them back up. No luck there either!

I have the same issue. No new mail on one account. Connection Doctor says Could not connect to this pop server. The funny thing is, my other account is getting email fine but this one is not. Checked with Tech support for my provider and no luck. Trashed preferences and no luck. This just started yesterday.