IMAP & iMail
Hi,
I use iMail on my iMac as it is the best product I have tried to date (which has included iMail, Entourage, PostBox, Pandora and many other 'free' products).
I would point you to a problem I have come across. I have about 6 mail accounts (different and same hosts) that I receive mail from daily. I use IMAP on both iMac and MBA. When I do this, I get all sorts of failures. Basically, it works for anything between 10 minutes and 10 days! Then, for no reason I can fathom, a mailbox on one of the two machines will go offline and won't go back online again.
I thought there were certificate conflicts and port conflicts etc etc but even when I don't use the MB for a week, I can replicate the problem within about 4 syncs.
This is a known problem with iMail and IMAP. It has been around since the first version and Apple don't appear to have any desire to resolve it.
So, I have iMail on my iMac (main machine) and it works probably 90% of the time. At least once a month I have to shut it down, restart (just iMail) and force Go Online to get a failed mailbox to work.
On the MBA I now suffer Entourage. I already had Office 2008 installed anyway so I just use that, sync my emails and then shut Entourage down again. Not my favorite product but it doesn't conflict with iMail at all.
Both are using IMAP so I always have both machines in sync.
In case you are wondering, this issue has been in Tiger, Leopard and Snow Leopard.... same problem.