diff --git a/sgx-bwmsgsv2.rb b/sgx-bwmsgsv2.rb
index b5705ee3eb37ee12df28016d4b77ebd1efda63e7..325f2259b67f64869e318107d2bac1c7dbf59c3c 100755
--- a/sgx-bwmsgsv2.rb
+++ b/sgx-bwmsgsv2.rb
@@ -303,13 +303,14 @@ module SGXbwmsgsv2
 
 		body = s.respond_to?(:body) ? s.body : ''
 		EM::HttpRequest.new(un.text, tls: { verify_peer: true }).head.then { |http|
+			# If content is too large, or MIME type is not supported, place the link inside the body and do not send MMS.
 			if http.response_header["CONTENT_LENGTH"].to_i > 3500000 ||
 			   !MMS_MIME_TYPES.include?(http.response_header["CONTENT_TYPE"])
 				unless body.include?(un.text)
 					s.body = body.empty? ? un.text : "#{body}\n#{un.text}"
 				end
 				to_catapult(s, nil, num_dest, user_id, token, secret, usern)
-			else
+			else # If size is less than ~3.5MB, strip the link from the body and attach media in the body.
 				# some clients send URI in both body & <url/> so delete
 				s.body = body.sub(/\s*#{Regexp.escape(un.text)}\s*$/, '')