I was suggesting you look at all of them. as they all refer to the Creation of Mobi Pocket Files
Im assuming you are trying to email it to your kindle or something right? I never Attempted this when i had my Kindle. but i did convert everything I would Read on my Kindle to Mobi Pocket myself, That way i could Format the Files as i Saw Fit(i like large indents and double returns between paragraphs).
https://www.mobileread.com/forums/showthread.php?t=17914 is a Guide On Learning to Use Mobi.
the Program I currently use for book Creation, Book Designer
https://www.mobileread.com/forums/showthread.php?t=11786 seems to also be able to export to MobiPocket Format. I just Tried it and it didnt come out too Bad. You need Microsoft word on your computer for book designer i believe.
and the Zealot thing is just my User title set by the Site, i assume because i have over 100 posts.