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NOTE: Also try port 587 if it fails to connect on port 25.
Download the following files into the TSS XP program folder.
http://www.sndsol.com/updates/xp/ssleay32.dll
http://www.sndsol.com/updates/xp/libeay32.dll
Yahoo 
Make sure the 'reply address' is the same as your 'user name'.
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