My verizon.net account suddenly stopped working on my Mac Mail?

Since it stopped working on all devices that really suggests a problem with Verizon.

Can you access the account via webmail?

I had the same problem, right about the time that I installed IOS8 on my ipad. All of a sudden, my OSX Imac started asking for passwords left and right, from mail to itunes to icloud etc. I tried keychain first aid, and a whole bunch of different things to alleviate the situation, including phone call to verizon tech. I convinced a friend of mine to stop over with his chromebook to let me use it to set up my verizon email just to see whether it was a verizon problem, or a apple problem. webmail worked fine, by the way. before he came over, i tried setting up via webmail forwarding my verizon mail to my gmail account (which was working fine on my imac mail app by the way). the morning he was to come over for the experiment my mail app suddenly worked again as though it had never happened. I spent a good 6 hours in tech **** pulling my hair out.

Verizon kept returning "password incorrect" on both incoming and outgoing mail attempts

Only on my primary email account. All sub account email addy's worked fine (on the mail app)

Gmail worked fine (on the mail app)

Verizon tech said eveything was fine on their end

I created a new sub-account on verizon, wouldn't work, same password problems

Have you tried deleting the account from the device and then recreating the account?

Note that all messages on the device that are not also on the server may be deleted.

FFor what it's worth, until everything suddenly started working again, I had deleted and recreated my account in the mail OS X app, as well as on my iOS mail app. No afftect. Also went on Verizon website, created a whole new sub account, thinking that I'd just have my primary account email forwarded to this new account, but, alas password issues with the new account. It should be worth noting that I had problems on both my imac and my iPad, but since I had been monkeying around with keychain access and just finished updating iOS to 8.02 I was convinced that it was alike based issue. I was ready to do a clean install the next morning, but it all just went back to normal.

Are these the settings you are using?

pop.verizon.net SMTP: smtp.verizon.net port 995 SSL password

I had the same problem with my verizon account two weeks ago. I switched to using the Thunderbird email app.

https://www.mozilla.org/en-US/thunderbird/

Same problem here. Happened on 17 September 2014. Verizon has walked me through set-up and all specs are correct. Curiously verizon.net still working on iPhone but not MacBookAir nor iPad.

Hope someone posts the solution soon.

Try booting into the Safe Mode using your normal account. Disconnect all peripherals except those needed for the test. Shut down the computer and then power it back up after waiting 10 seconds. Immediately after hearing the startup chime, hold down the shift key and continue to hold it until the gray Apple icon and a progress bar appear and again when you log in. The boot up is significantly slower than normal. This will reset some caches, forces a directory check, and disables all startup and login items, among other things. When you reboot normally, the initial reboot may be slower than normal. If the system operates normally, there may be 3rd party applications which are causing a problem. Try deleting/disabling the third party applications after a restart by using the application un-installer. For each disable/delete, you will need to restart if you don’t do them all at once.

Safe Mode - Mavericks

Safe Mode - About

I have the same problem, starting at about the same time, but with a twist—it's a problem only with my home office wi-fi. As soon as I go somewhere else that has wi-fi, all of my missing verizon emails suddenly appear in mail. The verizon email also shows up on my iphone, but usually only when I'm away from my normal wi-fi connection. I work around this, using a gmail address and getting the verizon email via the web—and now by having the verizon email forwarded to gmail—but the problem itself is a mystery.

I SPENT ALL DAY THURSDAY with verizon & apple ( Note: I am a verizon/yahoo account customer)

Good news: problem solved...... my solution via a very savvy verizon rep (the 5th one I dealt with on Thursday):

there were multiple verizon accounts accessing the same server.

These had to be disconnected from iCloud & then deleted.

Don't touch your main/primary verizon account.

Delete others in INTERNET PREFERENCES (choose minus sign ➖)

Then be sure these are your settings:

incoming.yahoo.verizon.net

outgoing.yahoo.verizon.net

In MAIL choose accounts then at outgoing mail server use pull down menu to get EDIT SMTP server list and delete all other verizon related.

I didn't think deleting outgoing would make a difference, but it did.

Good news: I now get all email for my primary Verizon account.

Other news: have not yet solved how to get email for sub account.