As you are probably aware, K9 does not have a PUSH function where, as soon as your server gets mail, it is pushed to your device with a resultant alert. So, you have to set a time interval for K9 to check your account(s).
It is a little confusing trying to find where to set this interval because (1) that are a TON of settings and (2) it is called "poll frequency" in the settings rather than something more intuitive like "check mail" or something like that.
You must set the "poll frequency" for EACH of your accounts...there is NO global setting (as far as I know of) for all accounts. Anyway, for EACH account you have do the following:
1. Go to the inbox of any folder view for the account you wish to set the frequency to check mail
2. Go to Menu -> More -> Settings -> Account Settings -> Fetching Mail (I told you there were a TON of settings to weed through!!)
3. Next choose "Folder poll frequency" and choose how often you want your mail for this account to be checked.
4. If you have other accounts, follow the above steps for your other account(s)
NOTE: It has been suggested that you NOT choose too frequent an interval (e.g., 1 minute or 5 minutes) because it will affect your battery life if it is VERY frequently checking/polling your mail. What I have done is set a reasonable interval of 2 hours for polling my accounts but at ANY TIME I can launch K9 and choose "Check Mail" to instantly poll ALL your email accounts and get your mail.
Hope this helps!
K-9 mail does support PUSH (IMAP Idle) so stop spreading falsehoods.
Every few months I download and give K9 a shot, and every few months I uninstall it, quite dissatisfied with the app.
My current issues are its exceedingly complicated setup and structure. With my paid Hotmail account being my primary one for several important reasons, I'd like to use K9 just with that. However, unlike the stock app, K9 is ridiculously complicated. Having to navigate through one screen after another after another just to get to my in-box is annoying. And where exactly is the trash folder when I need to go back and check a deleted Email? I either have the choice of "none" or the trash box/in-box. WTF is that? I tried that, and my in-box would never populate. Instead, the trash folder did. Stupid. And what about my "sent" folder? Again, a stupid and confusing set-up. These are but a few of the problems I constantly encounter with K9. To date, I still am very dissatisfied with it.
At least with my EVO's stock Email app, this stuff is easily visible and simple to navigate.
I'm running around today, so I may not get back to you on this till tomorrow or Monday. To keep things easier for me, I wanted to use K9 for my Hotmail account and the EVO's stock Email app for my other accounts (my 4 Comcast.net accounts). However, even just for my paid Hotmail account K9 was a pain in the ass, to put it mildly.
I'm glad someone does, because I loathe this app. As someone relatively intelligent, I found this Email app to be one of the most confusing, ridiculously complicated Email apps in existence.
An Email app that has a myriad of confusing, stupid folders; that makes it a chore just to find an Email; that makes it a brainteaser to delete a single Email or mass numbers of messages--that's an Email app that is, IMHO, a complete joke.
I know I'm not alone in this opinion, either. I asked a few friends of mine to give this a shot, and they all agreed that it is a very confusing, complicated Email app. Moreover, it still has issues when using it.
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