After upgrade to Lion, Mailplane experiences repeated failures to connect
FWIW, I have been using Mailplane on Lion on my MacBooks (Air&amp;Pro) without any bugginess. (Have you contacted the dev? He's been very responsive in my experience.)

If you didn't do a clean install of Lion (or used MobileMe to sync preferences) you might want to backup


${HOME}/Library/Application Support/Mailplane
${HOME}/Library/Preferences/com.mailplaneapp.Mailplane.plist


(If you don't have your license file, be sure to save

defaults read com.mailplaneapp.Mailplane License


too.)

zip/email them to yourself and then delete them -- not just trash them -- from your system. Reboot.

Then try setting up Mailplane again.