Email Paragraph Spacing Issues

I am experiencing trouble with formatting email messages in Hotmail/Outlook.  The email message looks fine after typing but after sending, there are lines / spaces being added in between the paragraphs.  I routinely clean my pc's cache and Firefox history. 

I have researched this issue and it appears that alot of people are complaining about this problem.  But no one has posted a solution, is there a solution?  If not, there are other free email service available.