Check The Email Trail, Below Reported Issue?

User_garyPlease check the email trail below and work on the issue and update on this email.

OK, as long as the trail is on that page and it actually is below in the destination client.

User_garyPlease check the below reported issue and update on this email

"Below reported" is unidiomatic.

User_garyPlease work on the reported issue below and update on this email.

OK, with the same caveat as number 1.

User_gary"And" repeated three times in the first sentence. Is there any better way?

Sure: "Please check the email trail below and work on the issue. Update on this email."

User_gary

Please check the email trail below and work on the issue and update on this email.

Please check the below reported issue and update on this email

Please work on the reported issue below and update on this email.

Please advise if these sentences are correct. "And" repeated three times in the first sentence. Is there any better way?

First of all, the tone of this sentence is not idiomatic to my ear, particularly the meaning of "trail" is not immediately clear; do you mean "a string of emails"? To avoid using the repetitive "and", you can say: Please address the issue stated in the email below and send me an update including a solution.