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cannot sign into thunderbird after cox comm. changed their server to yahoo.com

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I have cox comm. for internet and emails, they just changed their server to yahoo.com. Now I cannot sign into thunderbird to send or receive emails.

I have cox comm. for internet and emails, they just changed their server to yahoo.com. Now I cannot sign into thunderbird to send or receive emails.

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Did Cox give you any updated settings, assuming they changed their mail servers?