I am having an issue where MailDroid is not able to pick up new emails messages, sometimes for several hours. I'll go to the Combined Inbox, click Refresh Mail, and new messages do not show up. But if I go to K9 mail, the messages get picked up right away. They're not getting deleted off the server - that's not the issue - it's just that MailDroid is not seeing them for some reason.
This is unfortunate because MailDroid otherwise works well for me. I am often unable to reply to messages with K9 Mail. MailDroid seems fine on the sending side. So it's very frustrating. I have one client that has trouble receiving emails, and another one that has trouble sending them.
If I can get resolution for this problem, I would gladly pay cash money for an ad-free version of MailDroid.
I'm running Android 2.2.1 on a Droid X. I was also having this problem before the 2.2.1 update.