Help with Thunderbird

 Nope!
I am writing this from my ipad as your move to Yahoo has “broken” the use of Thunderbird.

for smtp is my user name 88sethmis@cox.net OR just 88sethmis ?

is the outgoing  OAuth2 or “Normal Password” ?

I can receive mail - I just CanNot send emails.  The error I get after entering my password is “Connection to outgoingserver (smtp) smtp.mail.yahoo.com lost in the middle of the transaction.”

what now?

Hello sethm1,

I appreciate needing steps for successfully setting up your cox.net in Thunderbird. When using a client with Yahoo, you'll need to generate a Third Party App Password for your Cox.net account to be able to use the Outlook with your Yahoo-transitioned Cox email account. This is a requirement by Yahoo's terms.

Step 1:
Log into Yahoo mail using your PC or Mac. You will need your full cox email address [youraccountname]@cox.net and the new email password you created when you completed your Cox to Yahoo transition. Once in the Yahoo mail click the icon at the top right (your name or initials) and select "Overview". Now from the menu at the top select "Security".

Step 2:
Look on the right for "Other ways to sign in" and you will see "App Password - If you don’t normally use a password to sign in to your Yahoo account, here’s where you can generate a password for 3rd-party apps that require passwords." Click on "Generate an app password" and provide a name for the app (e.g., Mac Mail or iPhone Mail). Yahoo will provide a new password for the Apple Mail app - make a copy of it (don't include the spaces).

Step 3:

Name - Your name
Email - [youraccountname]@cox.net
Description - what ever you want displayed

Incoming Mail Server
Host Name - imap.mail.yahoo.com
User Name - [youraccountname]@cox.net
Password - ** see note below

Outgoing Mail Server
Host Name - smtp.mail.yahoo.com
User Name - [youraccountname]@cox.net
Password - ** see note below

Use SSL - On
Authentication - Password
Server Port - 465

**Now carefully type in the new password generated by Yahoo and press return on the screen keyboard. You should get checkmarks indicating success. You need to do this for both the Incoming and Outgoing Server settings.

These steps should help you out, as these steps were confirmed to work for others when setting up the account after the transition to Yahoo.
 

close - I now can send from my cox email - within Thunderbird.  BUT I cant send from my Gmail account in T-Bird.  I tried a test from Gmail to Cox and I got a new error:  "Sending of the message failed.
An error occurred while sending mail. The mail server responded: Request failed; Mailbox unavailable. Please verify that your email address is correct in your account settings and try again."

Hi Sethm1,

I apologize, these are the steps we have to help with Cox addresses that have transitioned to Yahoo. You may consider contacting Thunderbird support. You may also try deleting and adding back the Gmail address and password and hitting save again. Not the actual inbox, just typing it back in and re-saving in the settings. The community members may be able to offer more support for this issue as well. 

Thank you.

Is the password the one I generated in Yahoo? Or ?