To keep it short and to the point, my dad knows a few people working in the IT industry. My dad has done some construction work in their premises. That's how my dad gets to know these individuals meet each other.

My dad has spoken to them individually about me, as I work in IT, and many have given him their email addresses. My dad wants me to contact them. 

I have some doubts:

1. I am not entirely sure what my dad has discussed with them
individually. He tends to forget details so I cannot ask him.
2. I have not met them personally nor been in contact with them.

**The question is:**

**How do I contact these individuals in the best way possible without sounding in my email like I am "begging for a job"? Also, since this email will be my first form of contact, I want to ensure I make a positive impression.
What would you suggest that I write in the mail so it sounds both professional and casual? These individuals are consultants.**

*The primary goal is to email my CV to these individuals my CV for career possibilities, and if they have vacancies for a better job than the one I currently have, then apply for that job through these individuals.*

Also, how would you suggest that I "follow this up"? I mean, reminding them of me for a "better opportunity".

I don't know if I am making all of this slightly too complicated, however in a way, I want to ensure that I make a good impression.

Thanks!