Grammar in EMAIL writing

how do we say when we need the person who receive the email responded back to us because some large file size just cannot go through...


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Mr. Mark,



Responding to your request, attached are the required documents;



1) Quality Plan

2) Testing Procedure

3) Test Report



Kindly confirm acceptance once received. <--- is this correct sometime i used once all files are well received.




Thank you/Regards,

Ronie Astkin