php - Handling send email error on Laravel 5 -


i trying send email confirmation user on local got error. 

swift_transportexception in abstractsmtptransport.php line 383: expected response code 250 got code "521", message "521 5.2.1 must complete image puzzle before sending. please goto http://challenge.aol.com/spam.html

how can catch error messenger , return client. please give sugestion. thank


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