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Question: Need OS 10.13.3 help

Since installing High Sierra, can not send or receive email. I still have all emails sent/received before installing OS 10.13.3 - just can not receive or send anymore. How do I fix this? (was running OS Mountain Lion when adding High Sierra) Everything else works.


iMac, OS 10.13.3 email doesn't work

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Question: Need OS 10.13.3 help