Mail Upgrade message in Mavericks won't go away

Did you restart the Mac?

I tried the disable-enable emthod multiple times, without being successful. The next day it worked! The mac was powered off -so it could be because of the reboot or the date.

Thanks, that worked for me 🙂

wow, the mail app starts up much faster under mavricksk than M. Lion Very nice.

Never gets past upgrading the database for me....

@jub80, thanks for alternate suggestion, alas, still not working even after full power down.

exact same prob as OP

Have tried all methods above (enable/disable accounts, reboots, deleting all in mail folder, recreating accounts, repair file sys, etc) and still got same problem - Welcome dialogue always appears, continue gets a ping and mail opens and works - but mail always hangs on quit and i have to force quit every time

i have both gmail and icloud accounts in mail

any other suggestions please?

i have 2 login accounts on this mac - this problem only affects the admin account, the normal user account upgraded fine and mail is working perfectly, go figure

the admin account with mail probs also has several other icloud account related issues since upgrading to Mav

desperately trying to avoid having to dump my ML clone back onto mac and do whole upgrade to Mav again... 😟

update: suddenly errors have stopped! - no more Welcome dialogue, no more Force Quit needed

have no idea what fixed it. just opened and closed mail several times with all accounts disabled (no machine reboots) and then enabled accounts and errors disappeared.

now just have to fix icloud mail drafts on my iphone suddenly not syncing to OSX Mail or to the icloud website Mail...

Worked for me - many thanks. That was getting annoying!

forgot to add - many thanks for all the ideas posted, i'm sure one of them or a combination gave me the fix.

I had to make sure ALL my mail accounts (I had some icould accounts that have been inactive for a while) were active, launch mail, use connection docotor and clean up all stale SMTP login issues. Once I did that I quite mail, relaunced and all was good.

After a loooong time, the database rebuilding finished, and things are mostly normal, with two exceptions:

• I have to re-enter the iCloud password every time the app launches, on all three of my Mavericks machines.
• The red number badges for unread mail (along with the count for some unread Smart folders), seems slow to update. Not a functional problem, but disconcerting. It may not be anything more than how Mavericks "saves up" operations to do them all together.

I have to re-enter the iCloud password every time the app launches, on all three of my Mavericks machines.

in Mail try changing the Authentication method for each icloud account to 'apple token'

this setting can be found at Preferences>Accounts>Advanced tab of each account

this worked for me - no more logging into icloud every time Mail opened. When i upgraded to Mavericks Mail suddenly switched the Authentication method to requiring a password but wouldn't save the password on the account information tab - very frustrating. bit of trial and error and found setting to apple token worked - so i don't know if thats officially how its supposed to be set, but its working

Thank you, Mollusc. I'll certainly give that a try.

None of this has worked for me. I just keep getting the annoyance panel. Doesn't happen on my MBPro, just on the (newer) 27" iMac. Driving me nuts.

Thanks scarpialuik, [and for the patience to post an answer twice] Your action worked for me too. I had the self same problem. One small detail, in my case, at step 4 the message was still there. but after renabliing the accounts, that is at step 7, the problem disappeared.