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i get my name ,address + address on the "from" line , of course program cant send the email, have used thunderbird program for < 1 year >

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each of the 3 addresses just appear on the "from" line on all emails, ( send , reply , write ) then I receive an undeliverable error message Thanks

each of the 3 addresses just appear on the "from" line on all emails, ( send , reply , write ) then I receive an undeliverable error message Thanks

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