There really is no "acceptable" number. However, the more you have, the longer it will take to refresh the folder view. Also, if you get more than ~750 messages in the New Mail folder, it will stop auto-refreshing the new mail folder. It will only refresh when you trigger it yourself.
As far as the refresh rate, use whatever you find convenient. 5 seconds, 10 second, etc. I have mine set to 30 seconds.
<p>There really is no "acceptable" number. However, the more you have, the longer it will take to refresh the folder view. Also, if you get more than ~750 messages in the New Mail folder, it will stop auto-refreshing the new mail folder. It will only refresh when you trigger it yourself.</p><p>As far as the refresh rate, use whatever you find convenient. 5 seconds, 10 second, etc. I have mine set to 30 seconds.
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