Does anyone know of main differences between utl_mail and utl_smtp and which may be better to use.
UTL_SMTP is more low level and is used by UTL_MAIL.
UTL_MAIL is easier to use.
What would you recommend to me UTL_SMTP or UTL_Mail. I have a code in which i able to send mail but how to send mail with attachment
You can find difference between UTL_MAIL and UTL_SMTP as below