I receive the error message "503 valid rcpt command must precede data outlook error". The "Outgoing Mail Server (SMTP) requires authentication" is checked. Also I tried SMTP's 25, 587, 465, etc.,. No help. Buryshane you have mentioned that the problem was solved with the aid of one software and it was found on a soft blog. Can you write me the name of the software and the website name to download it. Im using Win7 with MS outlook 2007 version. Thanks in advance.
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