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Yahoo email accounts keep stepping on each other

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I set up 2 Yahoo accounts in Thunderbird. Issue is when I go into setting on one and change the email for the user is changes the other account also. They both have their own Managed Identities but when I go to edit the username on the SMTP Server button it winds up changing the SMTP setting on the other account.

This only causes a problem sending mail. Only one works at a time. Receiving mail is not an issue so I can see the mail and each account has the correct received mail.

I set up 2 Yahoo accounts in Thunderbird. Issue is when I go into setting on one and change the email for the user is changes the other account also. They both have their own Managed Identities but when I go to edit the username on the SMTP Server button it winds up changing the SMTP setting on the other account. This only causes a problem sending mail. Only one works at a time. Receiving mail is not an issue so I can see the mail and each account has the correct received mail.
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Never Mind. AS soon as I posted I saw the SMTP server on the far left. I set up a 2nd one and pointed it to the other account.