outlook 2003 & 2007

guys while I am the only person in my household with this error code, I would truly appreciate an easy solution to outlooks error code 550. Anyone with info pls respond.
Thanks in advance.....

Sorry for my lame request guys, here is one of the thousands of responses that I receive as if I were initiating messages to these persons:

[Return Code 550] sid: doxT1l0091NDzRC01 :: 5.1.1 unknown or illegal alias: eaberridge@optonline.net
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More about outlook 2003 2007
  1. Because your description is very unspecific and you don't even mention, when the error occurs, i recommend searching for "outlook error code 550" on google. There are a lot of hits and one may be related to your problem.
  2. Start here: http://office.microsoft.com/en-us/outlook-help/troubleshoot-550-553-and-relay-prohibited-errors-HA001112833.aspx

    Then do a complete malware/virus scan of your PC as it may have become part of a botnet.
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