Mostly the manuscripts are returned from the editors with the comment

“This paper is within the scope of Journal however it still has English language problems throughout your manuscript; your manuscript is judged to be a Negotiable Rejection based on language. So you may consult a professional editing service. For English editing support you may try the following services”

And journals are recommending the different groups for editing services, however manuscript are corrected with the Internal English professors.

Is it necessary to submit the manuscript for Professional editing services recommended by the editors of the journal? And suggest how to handle this situation.

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