Hi, been hunting through the forums for a couple of hours now and haven't seen anything EXACTLY relevant to my problems.
I'm on a 2011 iMac i5, I was running 10.8.2 when the issue cropped up (I think) but updated to 10.8.3 as part of troubleshooting, to no effect.
Basically, several but not all of my email accounts stopped being able to connect, so I cannot send OR receive email through them. Intermittently, I will have gotten a few emails via the other accounts, but the volume is far less than normal. I did reset and then re-enter my passwords from Email accounts just to be sure. My gmail accounts seem to be working okay, and there appears to be some email coming through to webmail, it's just not getting from the servers to my Mail acct due to the cnxn issue.
I've already contacted my ISP and received some rather lackluster help that did, however, confirm that all of my settings appear to be accurate (as I didn't change them from the time it was working a few days ago, this didn't really surprise me). When I click to Take All Accounts online, nothing happens. When I click Check Again in the Connection Doctor, nothing changes. I've tried deleting the relevant Mail entries from my keychain, no effect. I've tried verifying and repairing Keychain access, no effect. I've tried setting access control to a few of the items I believe to be the relevant keychain entries to unlimited access, and nothing happened. I've tried creating a new email account using correct settings but IMAP rather than POP and it isn't able to connect either. I've tried changing the incoming port to 143 (from 110) and left SSL off for both, to no effect.
Weirdly, one of the green-lit accounts that says it's connected successfully is the one that keychain keeps prompting me to enter the password every few minutes.
Here is some of what Connection Doctor says. Under Details,
"Could not connect to this POP server. Check your network connection and that you entered the correct information in the Account preferences. Also verify that the serer accepts connections on port 110. If it does not, change the port number in the Advanced tab of Account preferences."
Here is a line of code related to the email acct for which I keep getting prompted to enter the code, despite it already being entered and saved (I've replaced the website address for privacy):
READ Apr 23 01:16:11.230 [kCFStreamSocketSecurityLevelNone] -- host:mail.MYWEBSITE.com -- port:110 -- socket:0x7f942d3884e0 -- thread:0x7f942a44a6b0
-ERR Authentication failed."
One thing that's new that I am just noticing is that in the GIGANTIC amount of code that it shows in the Details section, I do not see any reference to it even trying to authenticate the two main emails that are offline!!? What does that mean? Any thoughts and helps appreciated.
I would need a way to back up my emails before deleting and resetting as I don't have copies on the server...trying to be thorough here but am pretty much a newb at email troubleshooting. TIA!