What is the best way to respond to an email of introduction?

As per my experiences on emails I usuall start it with:

Dear ________,

Good day.

Thank you for your email.

With regards to the I email I receive dated (insert the date of the email) from Mr/Ms. _________.

Then you can add the reason of your reply or the inquiries you wanted to raise on the email.

Also, for the greetings it is much better to use period (.) than exclamation point (!). 

In business email world, it is much formal when you refrain on using exclamation point to make it more sounds professional.

hope this help you. 

xoxo

Hey Lamya Adam,

 Depends on the person you are sending to, Official/Formal: Sir Friend/Relative/Mate: DearThat's my opinion.

if it is a formal e-mail, so after addressing to sender keep below points in focus while writing text-body.

1. give the reference for what you are writing

2. come into point immediately what need to focus

3. eliminate extra word and useless points

4. try to concise email

5. be positive in e-mail writing

Subject: Self introduction.

Hi Mr.. 

Hope your doing well

I would like to introduce myself R.SAIRAM XXXXXXXXXX. is an china based company and we are toys manufacture company and export various country's as per our customer instruction.

Thanks for your attention.

Best regards,

XXXXXX

HP:XXXX

Mail Id:XXXXXX

First I will look who is sending me email and asking about me then I answer him.

For me the best way in responding an email of introduction:

First - after reading and understood the whole topic of the letter/email and know from whom or either your familiar of the person/company who sent you or not, i always say in formal see below:

===========================================

Example:

Dear Sir/Madam,

In regards of the above subject as mentioned... (continue... with you answer what was the main topic of His/Her Letter and needed information for Him/Her to know about your answer...)

Second: in Closing the Letter or Mail.

(If you need His/Her urgent reply) - i will mention below 

Awaiting your reply... - if reply needed ups to you...

Thanks...

Best Regards...

Mention Your Name

Your Contact details (co. phone / mobile number)

=====================================

Thanks... Ma'am Lamya Adam...

Hope you satisfied my way of format in responding an email...

Introductory Email should contain, A hello message, and a short description of what your company does and should mention about recent clients who are satisfied with the companies product.

Then share the contact information to reach you for their requirement.

Looking forward to working with you

Looking forward to hearing from you

Thank you for your email Mr/Mrs/Ms. So and so...

It depends on to whom you are sending the mails email scripts gets changed to the type of receiver.

greetings, acknoledment of the person email, your responce in that regards and lastly remarks