Some Mail accts suddently not connecting?

I think you have done some of this.

Mail – Troubleshoot Send and Receive

Mail Keeps Asking for Password

Mail Problems

Try setting up another admin user account to see if the same problem continues. If Back-to-My Mac is selected in System Preferences, the Guest account will not work. The intent is to see if it is specific to one account or a system wide problem. This account can be deleted later.

Isolating an issue by using another user account

I am having the same issues for the past 2 days, since the last update. My AOL email addresses keep going offline and i have to keep trying to re-connect thru connection doctor. Sometimes they won't even allow me to connect.

Sorry I have no answer but describing my very similar problem might help someone more technical to work it out.

I have only one account and that is with Yahoo. Most of the time I use web mail and once or twice a week download and file recieved emails in Mail.

I have three times in the last three weeks or month been unable to download from the Yahoo server.

I had changed nothing beforehand.

Mail repeatedly wanted me to reenter my password which didn't work. I changed my password on Yahoo and then in Mail. It worked, but then the next time it didn't.

I did the same again and it worked, but the next time it didn't. I have changed my password three times in order to get my mail from the server onto my Mac.

Since then I have checked the settings in Mail, deleted my account and set it up again

At present I cannot send or recieve from Mail on my Mac.

I can go to Yahoo Mail on my Mac and ipad and iphone. I can use the Yahoo app on ipad and iphone okay.

Basically I am lost, the problem appears to be with Mail rather than Yahoo. I will try opening a Gmail account and see what happens.

I have a 2012 Macbook Air and up to date Mountain Lion.

Message was edited by: Jonmcl

Send Apple feedback. They won't answer, but at least will know there is a problem. If enough people send feedback, it may get the problem solved sooner.

Feedback

I visited an Apple store to ask about Mail problems. The man I spoke to did not, I think, really want to listen and told me the problem was with Yahoo with no answer concerning the same problem with many other providers.

Instead of a Gmail account I opened a Y7mail account which ended up IMAP rather than POP.

This new account is working as it should so have set my other account to forward all email to the new one, so at least I am getting them all.

Then I attempted to change the original account to IMAP with no luck so far and I can't find any help for this yet.

With all that done it now seems that mail will download from both accounts just once, after I first start my Mac.

Thereafter only the IMAP account works.

It is a little messy but not as messy as changing everything to do with my main account.

I hope this work-around will also work for others until the problem is fixed.

This is an update to the above;

At present only the IMAP account at Y7mail is working.

I intend to try deleting the password in keychain which someone else said worked for them.

I will post the results when I'm sure of the result.

Unfortunately deleting the passwords in keychain did not work.

I'm lost once more as to what to try. I have no trouble logging into Yahoo mail from my Mac, my ipad or iphone.

I can read write and send emails as normal from Yahoo mail.

It seems that I can at least sometimes send from my POP account on Mail but cannot download emails from the Yahoo server onto my Mac.

I guess the next thing I can do when I feel brave enough is delete all reference on my Mac to the POP mail account and then set it up again.

It might reset something or reinvent itself as an IMAP account that works.

Apologies for being slow, but I'm stretching my abilities, and detailing my small steps may assist someone else.

I have found that for whatever reason POP had become turned off in my Yahoo POP account.

I have turned it on and now Mail is downloading my emails. May it last forever.

Here is the link to the Yahoo Help Page,

http://help.yahoo.com/kb/index?page=content&id=SLN3255&actp=search&viewlocale=en _AU&searchid=1368249801213&locale=en_US&y=PROD_MAIL_ML

This is the important bit on the page.

First make sure POP is turned on for your Yahoo Mail Account. Then follow instructions.

On testing it several times there has been no request for a password and test emails have downloaded.

Note: when I went to delete my POP account prior to setting it up again, I was told that deleting the account would remove all messages and email with that address. I could not risk losing years of filed emails so I looked at Yahoo help about how to set up a POP account and maybe instructions to change it to IMAP.

Anyway, I hope I found a solution that lasts. There will be similar instructions for other providers.

My feeling is that because Mail is the only common denominator between all the different computers and mail providers, that there must be something in Mail or the Mac OS that is turning this setting off.

But I know so little, I may be completely wrong.

I hope this solution works for for others and keeps working for me.

Sorry; the next time I turned on my Mac and used Mail it failed to download again.

I have been unable to repeat the success of yesterday.